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X-ray structural analyses of symmetrically and unsymmetrically substituted. mu. sub 3 -. eta. sup 3 -C sub 3 R sub 3 complexes of ruthenium: (. mu. -H)Ru sub 3 (. mu. sub 3 -. eta. sup 3 -CMeCMeCMe)(CO) sub 9 , (. mu. -H)Ru sub 3 (. mu. sub 3 -. eta. sup 3 -CMeCMeCOMe)(CO) sub 9 , and (. mu. -H)Ru sub 3 (. mu. sub 3 -. eta. sup 3 -CMeCMeCSEt)(CO) sub 9. Influence of. pi. -donor substituents upon nido-arachno polyhedral distortion

Journal Article · · Organometallics; (USA)
DOI:https://doi.org/10.1021/om00117a036· OSTI ID:6380259
; ;  [1];  [2]; ;  [3]
  1. State Univ. of New York, Buffalo (USA)
  2. Univ. of California, Irvine (USA)
  3. State Univ. of New York, Fredonia (USA)
+ Show Author Affiliations

Single-crystal X-ray diffraction studies of the title compounds have been performed. Comparison of these structures with that of ({mu}-H)Ru{sub 3}({mu}{sub 3}-{eta}{sup 3}-CMeCHCNEt{sub 2})(CO){sub 9}, previously reported, provide evidence that {pi}-donor substituents on the C{sub 3} unit cause distortion of the Ru{sub 3}C{sub 3} polyhedron from a nido toward an arachno structure. The {mu}{sub 3}-{eta}{sup 3}-CMeCMeCMe complex crystallizes in space group Pnma (No. 62) with a = 17.483 (11) {angstrom}, b = 16.033 (9) {angstrom}, c = 7.105 (3) {angstrom}, V = 1992 (2) {angstrom}{sup 3}, and Z = 4. The {mu}{sub 3}-{eta}{sup 3}-CMeCMeCOMe complex crystallizes in space group P2{sub 1}/n (No. 14) with a = 9.581 (2) {angstrom}, b = 20.470 (3) {angstrom}, c = 10.7003 (15) {angstrom}, {beta} = 106.400 (13){degree}, V = 2013.5 (5) {angstrom}{sup 3}, and Z = 4. The {mu}{sub 3}-{eta}{sup 3}-CMeCMeCSEt complex crystallizes in space group P2{sub 1}/n (No. 14) with a = 10.0275 (13) {angstrom}, b = 16.430 (3) {angstrom}, c = 13.812 (2) {angstrom}, {beta} = 107.976 (11){degree}, V = 2164.4 (6) {angstrom}{sup 3}, and Z = 4.

OSTI ID:
6380259
Journal Information:
Organometallics; (USA), Journal Name: Organometallics; (USA) Vol. 9:3; ISSN 0276-7333; ISSN ORGND
Country of Publication:
United States
Language:
English

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Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201* -- Chemical & Physicochemical Properties
COMPLEXES
CRYSTAL STRUCTURE
DATA
DATA ANALYSIS
EXPERIMENTAL DATA
INFORMATION
MEASURING INSTRUMENTS
MEASURING METHODS
NUMERICAL DATA
RUTHENIUM COMPLEXES
SYNTHESIS
TRANSITION ELEMENT COMPLEXES