CRYSTAL-STRUCTURES OF TRANS AND IS-ANIONOBIS(ETHYLENEDIAMINE)NITROSYLRUTHENIUM(II) COMPLEXES

Authors
TOMIZAWA H MIKI E MIZUMACHI K ISHIMORI T
Citation
H. Tomizawa et al., CRYSTAL-STRUCTURES OF TRANS AND IS-ANIONOBIS(ETHYLENEDIAMINE)NITROSYLRUTHENIUM(II) COMPLEXES, Bulletin of the Chemical Society of Japan, 67(7), 1994, pp. 1816-1824
Citations number
30
Categorie Soggetti
Chemistry
Journal title
Bulletin of the Chemical Society of Japan → ACNP
ISSN journal
00092673
Volume
67
Issue
7
Year of publication
1994
Pages
1816 - 1824
Database
ISI
SICI code
0009-2673(1994)67:7<1816:COTAI>2.0.ZU;2-Y
Abstract
The structures of trans-[RuX(en)2NO]X2' (X=OH (1), Cl (3), or NCS (4), en=ethylenediamine, X'=Br (1), Cl (3), or NCS (4)), trans-[Ru(H2O)(en )2NO]Cl3 (2), cis-[RuX(en)2NO]XPF6 (X=Cl (5), or Br (6)), and cis-[Ru( NCS)(en)2NO]I2.H2O (7) were determined by X-ray diffraction. In two pa irs of the geometrical isomers (3 and 5, and 4 and 7), the Ru-Cl or th e Ru-N(NCS) bond for the trans isomer was shorter than that for the ci s isomer due to a trans-strengthening effect of the NO; this effect wa s not observed for the corresponding Ru-N(en) bond. These facts indica te that the effect is mainly caused by both sigma- and pi-bonding inte ractions of the ligand trans to NO through Ru, and is not caused by on ly the sigma-donation of the ligand.