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Structure of Nitrosyltris(triphenylphosphine)rhodium, Rh(NO)(P(C 6 H 5 ) 3 ) 3
Author(s) -
Kaduk James A.,
Ibers James A.
Publication year - 1976
Publication title -
israel journal of chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.908
H-Index - 54
eISSN - 1869-5868
pISSN - 0021-2148
DOI - 10.1002/ijch.197600028
Subject(s) - rhodium , chemistry , triphenylphosphine , phosphine , crystallography , molecule , metal , stereochemistry , crystal structure , biochemistry , organic chemistry , catalysis
The structure of nitrosyltris(triphenylphosphine)rhodium, Rh(NO)‐(P(C 6 H 5 ) 3 ) 3 , has been determined from three‐dimensional X‐ray data. The compound crystallizes in the space group P 3 of the trigonal system with three molecules in a unit cell of dimensions a = 19.057(4) and c = 10.799(2)Å. Least‐squares refinement of the 162 variables has led to a value of the conventional R index (on F) of 0.052 for the 5456 independent reflections having F 2 o > 3 σ (F 2 o ). There are three independent molecules in the unit cell, one‐third of each being unique. The best first approximation is to describe the complex as a tetrahedral Rh( ‐I) complex; average parameters: Rh—P = 2.350(3), Rh—N = 1.759(13), N—O = 1.27(2) Å, P—Rh—P = 102.2(6), N—Rh—P = 116.0(5), Rh—N—O = 156.7(26) °. The nitrosyl groups are disordered about the threefold axes. The structure is compared with other metal nitrosyl phosphine complexes and the metal‐nitrosyl bonding is discussed.