X-ray structures of trans-dichloro(4-methylpyrimidine) (η¹-phenyl)bis(pyridine)rhodium(III) hydrate and trans-dichloro(phenyl)tris(triphenylstibine)rhodium(III) ethylacetate solvate. Molecular orbital analysis of trans-dichloro (4-methylp

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• 作者：Cini ; Renzo ; Cavaglioni ; Alessandro ; Tiezzi ; Enzo
• 关键词：Rhodium ; Phyridine ; Phenyl ; Antimony ; Organometallic
• 刊名：Polyhedron
• 出版年：1999
• 出版时间：January 8, 1999
• 年：1999
• 卷：18
• 期：5
• 页码：669-678
• 全文大小：484 K

文摘

The crystal and molecular structure of trans-dichloro(4-methylpyrimidine)(η ¹ -phenyl)cis-bis(pyridine)rhodium(III) water solvate, 1x 0.17H₂ O, and trans-dichloro(η ¹ -phenyl)tris(triphenylstibine)rhodium(III) ethylacetate solvate, 2x CH₃ CO₂ CH₂ CH₃ have been studied via X-ray diffraction from a single crystal at room temperature. The final refinement converged to R1 conventional index of 0.0350 and 0.0361 for the structural analysis of 1x 0.17H₂ O [space group R(-3) and 2x CH₃ CO₂ CH₂ CH₃ P(-1), respectively. The 4-methylpyrimidine ligand (Pym) is only weakly bound to Rh in 1, as shown by the long Rh-N distance (2.251(4) Å), compared to the Rh N(pyridine) lengths average, 2.066(4) . N-C bond distances involving the N donor average 1.329(6) and 1.345(6) for Pym and pyridine (Py) ligands, respectively. The C N C bond angle on the donor is 114.1(5)° for Pym and average 117.4(4)^° for Py.