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Bulletin of the Korean Chemical Society (BKCS)

ISSN 0253-2964(Print)
ISSN 1229-5949(Online)
Volume 13, Number 5
BKCSDE 13(5)
May 20, 1992 

Chemistry of Ruthenium Hydridonitrosyl Complexes Containing Chelating Triphosphines Ⅰ-Structures of RuH(NO)P3 (P3 : Chelating Triphosphines)
Ik-Mo Lee*, Devon W. Meek, Judith Gallucci
Chelating triphosphines were applied to freeze the fluxionality and to minimize the number of isomers found in the monophosphine analogues and this technique was proved to be useful. RuH(NO)P3(P3; Cyttp, ttp and etp) complexes were characterized to have similar trigonal bipyramidal structures with linear NO groups. Cyttp prefers to have a meridional geometry while etp prefers a facial one and ttp complexes are mixture of these two isomers. The crystal structure of RuH(NO)(Cyttp) has been determined to have a distorted trigonal bipyramidal structure with a linear NO in the equatorial plane. The crystals are orthorhombic, space group Pnma, with unit cell dimensions a = 16.356(2), b = 20.474(2), c = 10.915(l) Å, V = 3655 Å3, Z = 4, R = 0.035 and Rw = 0.034 for the 2900 intensities with Fo2 > 3σ(Fo2) and the 208 variables.
491 - 498
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