Издательство СО РАН

Издательство СО РАН

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Поиск по журналу

Журнал структурной химии

2012 год, номер 6

CRYSTAL STRUCTURE OF (h5-PENTAMETHYCYCLOPENTADIENYL)(METHYLDIPHENYLPHOSPHITE-P)DICHLORORHODIUM(III)

M. Nieuwenhuyzen1, G.C. Saunders2
1Queen's University Belfast, Belfast, BT9 5BA, United Kingdom
2The University of Waikato, Private Bag 3105, Hamilton 3240, New Zealand
g.saunders@waikato.ac.nz
Ключевые слова: h5-pentamethylcyclopentadienyl, ring slippage, rhodium, X-ray structure
Страницы: 1221-1224

Аннотация

The molecule (h5-pentamethylcyclopentadienyl)(methyldiphenylphosphinite-P)dichlororhodium(III), [(h5-C5Me5)RhCl2(PPh 2OMe)], crystallizes in the monoclinic crystal system in space group P21/c with unit cell parameters a = 16.056(3) Å, b = 9.4331(18) Å, c = 15.745(3) Å, β = 108.330(4)°, V = 2263.8(7) Å3 and Z = 4. There is three-legged piano stool geometry about Rh. The Rh—P distance of 2.278(2) Å is shorter than those of [(h5-C5Me5)RhCl2(PPh2OR)] where R is an aryl group, and longer than those found in [(h5-C5Me5)RhCl2{PPh(OR)2}]. The structure reveals significant distortion of the pentamethylcyclopentadienyl towards 'h3,h2-enyl-ene' coordination.