Three monoalkoxy-substituted nido-platinaboranes: [(PPh3)2PtB10H11-8-(OCH3)], [(PPh3)2PtB10H11-8-[OCH-(CH3)2]] and [(PPh3)2PtB10H10-9-[OCH(CH3)2]]

Y Nie; C H Hu; X Li; W Yong; J M Dou; J Sun; R S Jin; P J Zheng

doi:10.1107/s0108270101007788

Three monoalkoxy-substituted nido-platinaboranes: [(PPh3)2PtB10H11-8-(OCH3)], [(PPh3)2PtB10H11-8-[OCH-(CH3)2]] and [(PPh3)2PtB10H10-9-[OCH(CH3)2]]

Acta Crystallogr C. 2001 Aug;57(Pt 8):897-9. doi: 10.1107/s0108270101007788. Epub 2001 Aug 9.

Authors

Y Nie¹, C H Hu, X Li, W Yong, J M Dou, J Sun, R S Jin, P J Zheng

Affiliation

¹ Research Centre of Analysis and Measurement, Fudan University, Shanghai 200433, People's Republic of China.

PMID: 11498605
DOI: 10.1107/s0108270101007788

Abstract

Each of the title compounds, 8-methoxy-7,7-bis(triphenylphosphine-P)-8,9:10,11-di-muH-7-platina-nido-undecaborane dichloromethane hemisolvate, [Pt(CH(14)B(10)O)(C(18)H(15)P)(2)].0.5CH(2)Cl(2), (I), 8-isopropoxy-7,7-bis(triphenylphosphine-P)-8,9:10,11-di-muH-7-platina-nido-undecaborane dichloromethane solvate, [Pt(C(3)H(18)B(10)O)(C(18)H(15)P)(2)].CH(2)Cl(2), (II), and 9-isopropoxy-7,7-bis(triphenylphosphine-P)-8,9:10,11-di-muH-7-platina-nido-undecaborane dichloromethane solvate, [Pt(C(3)H(18)B(10)O)(C(18)H(15)P)(2)].CH(2)Cl(2), (III), has an 11-vertex nido polyhedral skeleton, with the 7-platinum centre ligating to two exo-polyhedral PPh(3) groups and an alkoxy-substituted polyhedral borane ligand. Compounds (II) and (III) are isomers. The Pt-B distances are in the range 2.214 (7)-2.303 (7) A for (I), 2.178 (16)-2.326 (16) A for (II) and 2.205 (6)-2.327 (6) A for (III).