Thermal and photochemical cis-trans isomerization of PtL2Cl2 (L = dialkyl sulfoxide) complexes. Kinetics and mechanisms for thermal isomerization

Price, Jerold H.; Birk, James P.; Wayland, Bradford B.

doi:10.1021/ic50186a046

Cited by 66 publications

(27 citation statements)

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“…Only few studies have been focused on complexes having two sulfoxide ligands in trans configuration [21][22][23][24]. Some years ago, we reported the first investigation on such an organometallic compound, the complex trans-[Pt(DMSO) 2 (CH 3 )Cl] (2) [25].…”

Section: Introductionmentioning

confidence: 99%

Synthesis and characterization of poly(amidoamine)-platinum(II) complexes. Detailed speciation by Matrix-Assisted Laser Desorption Ionization Mass Spectrometry

Mazzaglia

Scolaro

Garozzo³

et al. 2005

Journal of Organometallic Chemistry

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Section: Introductionmentioning

confidence: 99%

Synthesis and characterization of poly(amidoamine)-platinum(II) complexes. Detailed speciation by Matrix-Assisted Laser Desorption Ionization Mass Spectrometry

Mazzaglia

Scolaro

Garozzo³

et al. 2005

Journal of Organometallic Chemistry

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“…It was expected that the trans isomers would be formed first and would then isomerize to the cis compounds, similarly to the sulfoxide complexes (12)(13)(14)(15). In the latter compounds, the (d-d)n bonding is much more efficient in the cis configuration than in the trans isomers.…”

Section: Introductionmentioning

confidence: 99%

Synthesis and study of Pt(II)–nitrile complexes. Multinuclear NMR spectra and crystal structures of compounds of the types [Pt(R-CN)Cl₃]⁻ and cis and trans-Pt(R-CN)₂Cl₂

Rochon¹,

Melanson²,

Thouin³

et al. 1996

Can. J. Chem.

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Abstract:Complexes of the type [Pt(R-CN)Cl,]-were synthesized and studied by 'H, ' ", and Ig5pt NMR spectroscopies. The " J ( '~~P~- '~C ) coupling constants are about 240 Hz. The signals due to the cyano carbon atoms of the coordinated ligands were observed at higher fields than those of the free ligands. The shielding on the cyano carbon increases as the alkyl chain lengthens and also when the branching increases. The lg5pt signals of all the complexes were observed around -2000 ppm. The crystal structures of (NMe,)[Pt(C,H,-CN)Cl,] (1) and (NMe4)[Pt(p-HO-C6H,-CN)C13] (2) were determined. Con~pound 1 is monoclinic, P2,/c, a = 8.384(5), b = 15.336(19), c = 11.759(9) 8,, P = 99.52(6)", Z = 4, R = 0.054, and IVR = 0.051. Crystal 2 is tetragonal with a = 16.222(6), c = 12.052(5) 8,, Z = 8, R = 0.059, and wR = 0.044. The Pt-CI bond trans to the nitrile ligand is shorter than normal (2.276(3) 8, for 1 and 2.264(7) A for 2) while the two other bonds are normal (2.293(4), 2.287(3) 8, for 1 and 2.320(7), 2.275(8) 8, for 2). The Pt-N bonds are 1.97(1) 8, (1) and 1.92(2) 8, (2) and the segments Pt-N=C-C are linear.Disubstituted compounds were also synthesized and studied by multinuclear NMR. The ' "~t signals of the cis isomers were observed at lower fields than those of the trans isomers (A = 65 ppm), while the 13c signals of the cyano carbons of the trarzs isomers were observed at lower fields than those of the cis compounds (A = 0.6 pprn). The cis complexes isomerize to the trans compounds upon heating. The crystal structures of cis-(3) and trans-Pt(C2H5-CN),C12 (4) and also of cis-Pt@-HO-C,H,-CN),Cl, (5) Author to whom correspondence may be addressed. Telephone: (514)

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“…The compound is then isomerized to the cis-isomer since the enhanced re(d-d) bonding seems to be quite efficient in cis Pt compounds (Price, Williamson, Schramm & Wayland, 1972;Price, Birk & Wayland, 1978). cis structures have been reported for all the Pt" disubstituted complexes except with a very sterically demanding ligand, diisoamyl sulfoxide, which gave only the trans isomer (Price et al, 1972).…”

Section: Introduction When K2ptc14 Reacts With Sulfoxide Ligands (L)mentioning

confidence: 99%

trans-Dichlorobis(di-n-propyl sulfoxide)platinum(II)

Melanson¹,

Rochon²

1988

Acta Crystallogr C

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Thermal and photochemical cis-trans isomerization of PtL2Cl2 (L = dialkyl sulfoxide) complexes. Kinetics and mechanisms for thermal isomerization

Cited by 66 publications

References 7 publications

Synthesis and characterization of poly(amidoamine)-platinum(II) complexes. Detailed speciation by Matrix-Assisted Laser Desorption Ionization Mass Spectrometry

Synthesis and characterization of poly(amidoamine)-platinum(II) complexes. Detailed speciation by Matrix-Assisted Laser Desorption Ionization Mass Spectrometry

Synthesis and study of Pt(II)–nitrile complexes. Multinuclear NMR spectra and crystal structures of compounds of the types [Pt(R-CN)Cl₃]⁻ and cis and trans-Pt(R-CN)₂Cl₂

trans-Dichlorobis(di-n-propyl sulfoxide)platinum(II)

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Thermal and photochemical cis-trans isomerization of PtL2Cl2 (L = dialkyl sulfoxide) complexes. Kinetics and mechanisms for thermal isomerization

Cited by 66 publications

References 7 publications

Synthesis and characterization of poly(amidoamine)-platinum(II) complexes. Detailed speciation by Matrix-Assisted Laser Desorption Ionization Mass Spectrometry

Synthesis and characterization of poly(amidoamine)-platinum(II) complexes. Detailed speciation by Matrix-Assisted Laser Desorption Ionization Mass Spectrometry

Synthesis and study of Pt(II)–nitrile complexes. Multinuclear NMR spectra and crystal structures of compounds of the types [Pt(R-CN)Cl3]− and cis and trans-Pt(R-CN)2Cl2

trans-Dichlorobis(di-n-propyl sulfoxide)platinum(II)

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Synthesis and study of Pt(II)–nitrile complexes. Multinuclear NMR spectra and crystal structures of compounds of the types [Pt(R-CN)Cl₃]⁻ and cis and trans-Pt(R-CN)₂Cl₂