1985-1989
1985
114. Synthesis and identification of a series of hexafluoroacetylacetonato complexes of Co(III). Spectroscopic analyses of the reversible addition of hydroxide to the coordinated ligand in aqueous solution
S. Aygen, Y. Kitamura, K. Kuroda, R. Kume, H. Kelm and R. van Eldik
Inorg. Chem., 24, 423 (1985)
115. Volumes of activation for inorganic and organometallic reactions: a tabulated compilation
R. van Eldik
„Mechanisms of Inorganic and Organometallic Reactions“, Vol. 3, M. Twigg (Ed.), Plenum Publ. Co., 399 (1985)
116. The effect of ionic strength and pressure on the hydrolysis equilibrium of aquated iron(III) ions
P. Martinez, R. van Eldik and H. Kelm
Ber. Bunsenges. Phys. Chem., 89, 81, 447 (1985)
117. Concerning the mechanism of isomerization of cis-azoalkanes
R. van Eldik, H. Kelm, M. Schmittel and C. Rüchardt
J. Org. Chem., 50, 2998 (1985)
118. Associative nature of substitution reactions of manganese(II) in aqueous solution
R. Mohr, L.A. Mietta, Y. Ducommun and R. van Eldik
Inorg. Chem., 24, 757 (1985)
119. Kinetic and spectroscopic studies of the substitution reactions of [Rh(acac)(CO)2] with triphenylphosphite
R. van Eldik, S. Aygen, H. Kelm, A.M. Trzeciak and J.J. Ziolkowski
Transition Met. Chem., 10, 167 (1985)
120. Kinetics and mechanism of the formation, substitution, isomerization and acid-catalyzed aquation reactions of trans-(O-sulfito)cyanotetraamminecobalt(III) in aqueous solution
J. Kraft and R. van Eldik
Inorg. Chem., 24, 3391 (1985)
121. The effect of ionic strength and pressure on the complex formation and hydrolysis equilibria in the aquated iron(III)-thiocyanate system
P. Martinez and R. van Eldik
Ber. Bunsenges. Phys. Chem., 89, 728 (1985)
122. The catalytic effect of nitrate ions on Co(III) substitution reactions. Solvent exchange data from oxygen-17 NMR measurements
S. Aygen, H. Hanssum and R. van Eldik
Inorg. Chem., 24, 2853 (1985)
123. Solvatochromic, piezochromic and thermochromic behaviour of Mo(CO)4(NN) complexes
H.-T. Macholdt, R. van Eldik, H. Kelm and H. Elias
Inorg. Chim. Acta, 104, 115 (1985)
124. Fast complex formation reactions of divalent first-row transition metal ions in aqueous solution: mechanistic information from volumes of activation
R. Mohr and R. van Eldik
Inorg. Chem., 24, 3396 (1985)
125. Kinetics and mechanism of the formation, aquation and base hydrolysis reactions of a series of monodentate carbonato complexes of palladium(II)
G. Mahal and R. van Eldik
Inorg. Chem., 24, 4165 (1985)
126. High pressure effects on ligand substitution reactions of molybdenum(O) carbonyl complexes
H.-T. Macholdt and R. van Eldik
Transition Met. Chem., 10, 323 (1985)
127. Volumes of activation for outer-sphere electron transfer between cobalt-(II) and -(III) in solution
P. Braun and R. van Eldik
J. Chem. Soc., Chem. Commun., 1349 (1985)
1986
128. Charge-transfer photochemistry under high pressure: reductive elimination from trans-diazidotetracyanoplatinate(IV)
W. Weber and R. van Eldik
Inorg. Chim. Acta, 111, 129 (1986)
129. Mechanistic information from the effect of pressure on some typical outer-sphere electron-transfer reactions of Co(III) complexes
I. Krack, P. Braun and R. van Eldik
Physica, 139/140 B, 680 (1986)
130. The spectral characterization and kinetics of formation of hypoiodous acid in aqueous solution
D.A. Palmer and R. van Eldik
Inorg. Chem., 25, 928 (1986)
131. Reactions of Rh(acac)[P(OPh)3]2 with H2, CO and olefins
A.M. Trzeciak, J.J. Ziolkowski, S. Aygen and R. van Eldik
J. Mol. Catal., 34, 337 (1986)
132. Mechanistic information from the effect of pressure on thermal and photochemical substitution reactions
R. van Eldik
Comments Inorg. Chem., 5, 135 (1986)
133. Mechanistic information from the effect of pressure on some outer-sphere electron-transfer reactions involving the reduction of cobalt(III) by iron(II) complexes in aqueous solution
I. Krack and R. van Eldik
Inorg. Chem., 25, 1743 (1986)
134. Volumes of activation for inorganic and organometallic reactions: a tabulated compilation
R. van Eldik
„Mechanisms of Inorganic and Organometallic Reactions“, Vol. 4, M. Twigg (Ed.), Plenum Publ. Co., 433 (1986)
135. Volumes of activation and mechanistic assignment for chelate ring replacement at tetracarbonylchromium(O) centers
H.-T. Macholdt, R. van Eldik and G.R. Dobson
Inorg. Chem., 25, 1914 (1986)
136. Understanding reaction dynamics in coordination chemistry – application of high pressure techniques
R. van Eldik
Angew. Chem., 98, 671 (1986)
Angew. Chem. Int. Ed. Engl., 25, 673 (1986)
137. Transition metals as potential catalysts in atmospheric oxidation processes
R. van Eldik
„Chemistry of multiphase atmospheric systems“, NATO Advanced Study Institute, W. Jaeschke (Ed.), Springer Verlag, 541 (1986)
138. Leaving group effects on the kinetic parameters for solvolysis reactions of sterically hindered palladium(II) complexes in aqueous solution
M. Kotowski and R. van Eldik
Inorg. Chem., 25, 3896 (1986)
139. Mechanistic information from medium and high-pressure effects on the photooxidation of nitrosylpentacyanoferrate(II)
G. Stochel, R. van Eldik and Z. Stasicka
Inorg. Chem., 25, 3663 (1986)
140. Effect of pressure on the photochemical formation and thermal back-isomerization of a sulfinato-O complex of cobalt(III)
W. Weber, H. Maecke and R. van Eldik
Inorg. Chem., 25, 3093 (1986)
141. The effect of ionic strength and pressure on the complex formation kinetics of the aquated iron(III)-thiocyanate system
P. Martinez, R. Mohr and R. van Eldik
Ber. Bunsenges. Phys. Chem., 90, 609 (1986)
142. Kinetics and mechanism of the reactions of sulfito complexes in aqueous solution. 7. Formation and redox reactions of sulfur-bonded aqua(sulfito)- and bis(sulfito)[bis(phenantrholine) or -bis(bipyridine)]cobalt(III) complex ions
V.K. Joshi, R. van Eldik and G.M. Harris
Inorg. Chem., 25, 2229 (1986)
143. The formation and reactivity of sulfito complexes of tetraethylenepentaminecobalt(III): X-ray structure of αα-[Co(tetren)SO3]ClO4
K.J. Schneider, A. Roodt, J.G. Leipoldt and R. van Eldik
Inorg. Chim. Acta, 122, 1 (1986)
144. High pressure kinetics: fundamental and experimental aspects; concluding remarks
R. van Eldik
Inorganic High Pressure Chemistry: Kinetics and Mechanisms, R. van Eldik (Ed.), Elsevier Science Publishers, Amsterdam, 1986, Chapters 1 and 8
145. Substitution, isomerization and related reactions of octahedral complexes
R. van Eldik
Inorganic High Pressure Chemistry: Kinetics and Mechanisms, R. van Eldik (Ed.), Elsevier Science Publishers, Amsterdam, 1986, Chapter 3
146. Substitution, isomerization and related reactions of four-coordinate complexes
M. Kotowski and R. van Eldik
Inorganic High Pressure Chemistry: Kinetics and Mechanisms, R. van Eldik (Ed.), Elsevier Science Publishers, Amsterdam, 1986, Chapter 4
147. Volume profiles for the base hydrolysis of a series of monoalkylsubstituted chloropentaamminecobalt(III) complexes in aqueous solution
R. van Eldik, Y. Kitamura and C.P. Piriz Mac-Coll
Inorg. Chem., 25, 4252 (1986)
148. Pressure effects on the excited state reaction dynamics of bis(bipyridine)dichlororhodium(III), cis-Rh(bpy)2Cl2+
S. Wieland, J. DiBenedetto, R. van Eldik and P.C. Ford
Inorg. Chem., 25, 4893 (1986)
149. Kinetics and mechanism of the reaction between trans-dioxotetracyanotungstate(III) and azide in aqueous solution
J.G. Leipoldt, R. van Eldik, S.S. Basson and A. Roodt
Inorg. Chem., 25, 4639 (1986)
1987
150. Activation volumes for the substitution reactions of the triruthenium cluster anions HRu3(CO)11– and Ru3(CO)11(CO2CH3)–
D.J. Taube, R. van Eldik and P.C. Ford
Organometallics, 6, 125 (1987)
151. Preparation, characterization and reactivity of a series of diethylenetriamine(dien) and substituted dien complexes of platinum(II)
G. Mahal and R. van Eldik
Inorg. Chim. Acta, 127, 203 (1987)
152. Oxidation of L-ascorbic acid by trisoxalatoferrate(III) in aqueous solution. Kinetic and spectroscopic evidence for the formation of an intermediate species
P. Martinez, J. Zuluaga, D. Uribe and R. van Eldik
Inorg. Chim. Acta, 136, 11 (1987)
153. Evidence for a strong labilization effect by coordinated sulfite in amine complexes of palladium(II)
G. Mahal and R. van Eldik
J. Chem. Soc., Chem. Commun., 328 (1987)
154. High pressure studies of inorganic reaction mechanisms
R. van Eldik
„High pressure chemistry and biochemistry“, Nato Advanced Study Institute, R. van Eldik and J. Jonas (Eds.),
D. Reidel, Dordrecht, Series C, 197, 333 (1987)
155. Inorganic photochemistry at high pressure
R. van Eldik
„High pressure chemistry and biochemistry“, Nato Advanced Study Institute, R. van Eldik and J. Jonas (Eds.),
D. Reidel, Dordrecht, Series C, 197, 357 (1987)
156. Spectroscopic and structural studies of the unique hydrolysis product of a hexafluoroacetylacetonato complex of cobalt(III). The crystal structure of bis(ethylenediamine)(hexafluorohydroxoacetylacetonato)cobalt(III) bromide monohydrate, [Co(en)2(hfac.OH)]Br.H2O
S. Aygen, E.F. Paulus, Y. Kitamura and R. van Eldik
Inorg. Chem., 26, 769 (1987)
157. The mechanism of complex formation reactions of diethylenetriaminepalladium(II) with nucleosides – a case of anation, aquation and manipulation
E.L.J. Breet and R. van Eldik
J. Chem. Soc., Chem. Commun., 408 (1987)
158. Photoisomerization of bis(bipyridyl)rhodium(III) complexes
G. Krüger, S. Wieland and R. van Eldik
Angew. Chem., 99, 245 (1987)
Angew. Chem. Int. Ed. Engl., 26, 240 (1987)
159. Synthesis and structure of a novel rhodium(I)-complex P3RhP‘ (P= P(OPh)3, P’= PO(OPh)2–): application of 2D-31P, and 1H, 13C and 17O NMR spectroscopy
S. Aygen and R. van Eldik
Organometallics, 6, 1080 (1987)
160. Structure and reactivity of the H3O2– bridging ligand in trans-hydroxoaquabis(ethylenediamine)rhodium(III)
R. van Eldik, A. Roodt and J.G. Leipoldt
Inorg. Chim. Acta, 129, L41 (1987)
161. Kinetics and mechanism of the fundamental substitution processes during complex formation of the diethylenetriaminepalladium(II) center with nucleic bases, nucleosides and 5′-nucleotides in aqueous solution
E.L.J. Breet and R. van Eldik
Inorg. Chem., 26, 2517 (1987)
162. Formation and reactivity of palladium(II) sulfito complexes in aqueous solution. I. Spectroscopic evidence for the labilization of a chelated amine
G. Mahal and R. van Eldik
Inorg. Chem., 26, 1837 (1987)
163. Formation and reactivity of palldaium(II) sulfito complexes in aqueous solution. II. Kinetics and mechanisms
G. Mahal and R. van Eldik
Inorg. Chem., 26, 2838 (1987)
164. The kinetics and mechanism of the reaction of 2′-deoxy-5′-guanosinemonophosphoric acid and diaqua form for cis-platin
D.J. Evans, M. Green and R. van Eldik
Inorg. Chim. Acta, 128, 27 (1987)
165. Solvent, ligand, pressure and temperature effects on charge-transfer spectra of tetracarbonylmolybdenum(O) diimine complexes
R. bin Ali, J. Burgess, M. Kotowski and R. van Eldik
Transition Met. Chem., 12, 230 (1987)
166. Piezochromic and thermochromic behaviour of ternary diimine-cyanide-iron(II) and -iron(III) complexes
M. Kotowski, R. van Eldik, R. bin Ali, J. Burgess and S. Radulovic
Inorg. Chim. Acta, 131, 225 (1987)
167. Computer controlled data acquisition- and analysis-system for stopped-flow kinetic measurements: developed for a Dionex stopped-flow instrument with data handling on an Apple or compatible computer
J. Kraft, S. Wieland, U. Kraft and R. van Eldik
GIT Fachz. Lab., 31, 560 (1987)
168. Aquation of neutral ligands from pentaammine-cobalt(III) and -chromium(III) ions: mechanistic differentiation
G.A. Lawrance and R. van Eldik
J. Chem. Soc., Chem. Commun., 1105 (1987)
169. High pressure kinetic study of an unusual hydrolysis reaction of (hexafluoroacetylacetonato)bis(ethylenediamine)cobalt(III) in aqueous solution
Y. Kitamura and R. van Eldik
Inorg. Chem., 26, 2907 (1987)
170. Pressure enhancement of substitution and oxidative addition reactions of Rh(I) complexes
J.G. Leipoldt, E.C. Steynberg and R. van Eldik
Inorg. Chem., 26, 3068 (1987)
171. Substitution kinetics of diethylenetriamine complexes of palladium(II) with tris(hydroxymethyl)aminomethane in aqueous solution
E.L.J. Breet and R. van Eldik
Inorg. Chem., 26, 4264 (1987)
172. The characterization of a ring-opened diethylenetriamine complex of Pt(II). The crystal structure of Pt(dien.HCl)Cl2
G. Mahal, R. van Eldik, A. Roodt and J.G. Leipoldt
Inorg. Chim. Acta, 132, 165 (1987)
173. Volumes of activation for kinetically-labile organometallic complexes: solvent displacement from cis(C6H5Cl)(PPh2R)W(CO)4 (R= Ph, (CH2)4CH=CH2) in chlorobenzene solution
H.H. Awad, G.R. Dobson and R. van Eldik
J. Chem. Soc., Chem. Commun., 1839 (1987)
174. Volumes of activation for anion-diazonium ion recombination
N.S. Isaacs, T.S. Najem and R. van Eldik
Tetrahedron Lett., 28, 3043 (1987)
1988
175. Volumes of activation for inorganic and organometallic reactions: a tabulated compilation
R. van Eldik
„Mechanisms of Inorganic and Organometallic Reactions“, Vol. 5, Twigg (Ed.), Plenum Publ. Co., 377 (1988)
176. Kinetics and mechanism of the oxidation of L-ascorbic acid by trisoxalatocobaltate(III) in basic aqueous solution
P. Martinez, J. Zuluaga, J. Kraft and R. van Eldik
Inorg. Chim. Acta, 146, 9 (1988)
177. From inorganic reaction mechanisms to homogeneous catalysis
R. van Eldik
in „Coordination Chemistry and Catalysis“
J.J. Ziolkowski (Ed.), World Scientific, 145 (1988)
178. Kinetics of the substitution reaction of labile palladium(II) dien complexes with TRIS – a case of basicity, nucleophilicity and complexity
J.J. Pienaar, E.L.J. Breet and R. van Eldik
S.A. J. Science, 84, 389 (1988)
179. Ligand substitution in manganese(I) carbonyl complexes Mn(CO)5X (X = Cl, Br): Activation parameters and X-ray structure of Mn(CO)3(dab)Cl (dab = biacetylbis(phenylimine))
G. Schmidt, H. Paulus, R. van Eldik and H. Elias
Inorg. Chem., 27, 3211 (1988)
180. Kinetics and mechanism of the acid-catalyzed aquation and base hydrolysis of nitropentacyanoferrate(III) in aqueous solution. Evidence for a pseudo-zero-order hydrolysis process
G. Stochel, R. van Eldik, E. Hejmo and Z. Stasicka
Inorg. Chem., 27, 2767 (1988)
181. Kinetics and mechanism of the formation of FeII(edta)NO in the system FeII(edta)/NO/HONO/NO2– in aqueous solution
V. Zang, M. Kotowski and R. van Eldik
Inorg. Chem., 27, 3279 (1988)
182. Solvent dependence of the activation parameters for the solvolysis of a typical square planar complex pyridine-(pentamethyldiethylenetriamine)palladium(II)
M. Kotowski, S. Begum, J.G. Leipoldt and R. van Eldik
Inorg. Chem., 27, 4472 (1988)
183. Kinetics and mechanism of the ligand substitution reactions of ethylenediaminetetraacetate complexes of ruthenium(III) in aqueous solution
H. C. Bajaj and R. van Eldik
Inorg. Chem., 27, 4052 (1988)
184. A compact, transportable and multi-purpose high pressure unit for UV-VIS spectroscopic measurements at pressures up to 200 MPa
M. Spitzer, F. Gärtig and R. van Eldik
Rev. Sci. Instrum., 59, 2092 (1988)
1989
185. Substitution kinetics of palladium(II)diethylenetriamine complexes in basic medium
J.J. Pienaar, E.L.J. Breet and R. van Eldik
Inorg. Chim. Acta, 155, 249 (1989)
186. Volumes of acitvation and volume profiles as mechanistic criteria for base hydrolysis reactions of cobalt(III) amine complexes
Y. Kitamura, G.A. Lawrance and R. van Eldik
Inorg. Chem., 28, 333 (1989)
187. Activation volumes for aquation on chromium(III) pentaamine complexes with neutral leaving groups: comparison with and mechanistic differentiation from cobalt(III) analogues
N.J. Curtis, G.A. Lawrance and R. van Eldik
Inorg. Chem., 28, 329 (1989)
188. Volume profiles for solvolysis reactions of sterically hindered diethylenetriamine complexes of palladium(II) in aqueous solution
J.J. Pienaar, M. Kotowski and R. van Eldik
Inorg. Chem., 28, 373 (1989)
189. Kinetics and mechanism of the solvolysis reaction of nitropentacyanoferrate(III)
G. Stochel and R. van Eldik
Inorg. Chim. Acta, 155, 95 (1989)
190. The influence of atomic size on mechanism: displacement of chelating ligands coordinating through sulfur from their group VI B metal carbonyl complexes of Cr and Mo
H.H. Awad, C.B. Dobson, G.R. Dobson, J.G. Leipoldt, K. Schneider, R. van Eldik and H.E. Wood
Inorg. Chem., 28, 1654 (1989)
191. Temperature, pressure and viscosity dependence of outer-sphere electron-transfer processes. The reduction of aquapentaamminecobalt(III) by hexacyanoiron(II)
I. Krack and R. van Eldik
Inorg. Chem., 28, 851 (1989)
192. Isolation and identification of a trans-bis(bipyridine) complex of rhodium(III). Crystal structure of [trans-Rh(bpy)2Cl]2(H5O3)(ClO4)2 – evidence for a H5O3 – bridging group
G. Krüger, A. Roodt, J.G. Leipoldt and R. van Eldik
Inorg. Chem., 28, 3073 (1989)
193. Concerning ring-opened diethylenetriamine complexes of Pt(II). The crystal structure of [Pt(dienH)Cl2]2[PtCl4].H2O
G. Mahal, R. van Eldik, A. Roodt and J.G. Leipoldt
Inorg. Chim. Acta, 156, 29 (1989)
194. Kinetics and mechanism of the iron(III)-catalyzed autoxidation of sulfur(IV)-oxides in aqueous solution. I. Formation of transient iron(III)-sulfur(IV) complexes
J. Kraft and R. van Eldik
Inorg. Chem., 28, 2297 (1989)
195. Kinetics and mechanism of the iron(III)-catalyzed autoxidation of sulfur(IV)-oxides in aqueous solution. II. Decomposition of transient iron(III)-sulfur(IV) complexes
J. Kraft and R. van Eldik
Inorg. Chem., 28, 2306 (1989)
196. Pressure tuning spectroscopic study of electron tunnelling processes in solution
N.A. Lewis, Y.S. Obeng, D.V. Taveras and R. van Eldik
J. Am. Chem. Soc., 111, 924 (1989)
197. A spectroscopic and mechanistic study of the enolization and diol formation reactions of hexafluoroacetylacetone in the presence of water and alcohol
S. Aygen and R. van Eldik
Chem. Ber., 122, 315 (1989)
198. Mechanistic information on base hydrolysis and basepromoted linkage isomerization reactions of chromium(III) amine complexes from volumes of activation
P. Guardado, G.A. Lawrance and R. van Eldik
Inorg. Chem., 28, 976 (1989)
199. Application of high pressure kinetic techniques to mechanistic studies in coordination chemistry
M. Kotowski and R. van Eldik
Coord. Chem. Rev., 93, 19 (1989)
200. Activation and reaction volumes in solution II
R. van Eldik, T. Asano and W.J. le Noble
Chem. Rev., 89, 549 (1989)
201. Evidence for multistep reactions in the iron(III) catalyzed autoxidation of sulfur(IV)-oxides: possible steps during acid rain formation
J. Kraft and R. van Eldik
J. Chem. Soc., Chem. Commun., 790 (1989)
202. Kinetics and mechanism of the ligand substitution reactions of N-hydroxyethylethylenediaminetriacetate complexes of ruthenium(III) in aqueous solution
H.C. Bajaj and R. van Eldik
Inorg. Chem., 28, 1980 (1989)
203. Pressure as a key parameter to distinguish between associative charge-transfer and dissociative ligand-field photochemistry. CO substitution in W(CO)4(1,10-phenanthroline)
S. Wieland and R. van Eldik
J. Chem. Soc., Chem. Commun., 367 (1989)
204. Apparatus for filling the pillbox high-pressure optical cell under unaerobic conditions
S. Wieland and R. van Eldik
Rev. Sci. Instrum., 60, 955 (1989)
205. Mechanistic differentiation between solvolysis reactions of pentaammine(trifluoromethanesulfonato-O) complexes of cobalt(III), chromium(III), and rhodium(III)
S. Suvachittanont and R. van Eldik
Inorg. Chem., 28, 3660 (1989)
206. Mechanistic interpretation of high pressure effects on the photosubstitution of pyridine and 4-substituted pyridine in complexes of tungstenpentacarbonyl
S. Wieland, R. van Eldik, D. Crane and P.C. Ford
Inorg. Chem., 28, 3663 (1989)
207. Kinetics and mechanism of solvent exchange and anation reactions of sterically hindered diethylenetriamine complexes of palladium(II) in aqueous solution
J. Berger, M. Kotowski, R. van Eldik, U. Frey, L. Helm and A.E. Merbach
Inorg. Chem., 28, 3759 (1989)
208. Kinetics and mechanism of the anation of aquocobalamin (Vitamin B12a) by cyanoferrates. Isolation and indentification of a cyano-bridged product and mechanistic information from pressure effects
G. Stochel, R. van Eldik, H. Kunkely and A. Vogler
Inorg. Chem., 28, 4314 (1989)
209. Volumes of activation for inorganic and organometallic reactions: a tabulated compilation
K.J. Schneider and R. van Eldik
„Mechanisms of Inorganic and Organometallic Reactions“, Vol. 6, M. Twigg (Ed.), Plenum Publ. Co., 437 (1989)
210. High pressure 17O NMR study of solvent exchange on square planar complexes: water exchange on Pd(dien)H2O2+
L. Helm, A.E. Merbach, M. Kotowski and R. van Eldik
High Pressure Research, 2, 49 (1989)
211. Reaktionskinetik von Eisenchelatkomplexen mit SOx and NOy in wässriger Lösung: Abgasreinigung durch homogene Katalyse?
V. Zang and R. van Eldik
Dechema, 118, 143 (1989)
212. Reductive elimination of hydrogen from H3Ru3(μ3-COMe)(CO)9 and ligand substitution on HRu3(μ-COMe)(CO)10. Mechanistic information from high-pressure kinetics
J. Anhaus, H.C. Bajaj, R. van Eldik, L.R. Nevinger and J.B. Keister
Organometallics, 8, 2903 (1989)
213. The possible role of iron(III)-sulfur(IV) complexes in the catalyzed autoxidation of sulfur(IV)-oxides. A mechanistic investigation
J. Kraft and R. van Eldik
Atmospheric Environment, 23, 2709 (1989)