A zirconoxy carbene from monocarbonylbis(-cyclopentadienyl)tungsten and permethylzirconocene dihydride: (5-C5H5)2W=C(H)OZr(H)(5C5Me5)2
Abstract
<h2>Acta Crystallographica Section C</h2><h3>Crystal Structure Communications</h3><h3>0108-2701</h3> <h2>research papers (metal-organic compounds)</h2> Volume 39 Part 10 Pages 1330-1333 October 1983 <h2>A zirconoxy carbene from monocarbonylbis( -cyclopentadienyl)tungsten and permethylzirconocene dihydride: ( 5 -C 5 H 5 ) 2 W=C(H)OZr(H)( 5 C 5 Me 5 ) 2 </h2> P. T. Wolczanski, R. S. Threlkel and B. D. Santarsiero 1330 Acta Cryst. (1983). C39, 1330-1333 A Zlreonoxy Carbene from Monoearbonylbis(r/-eyelopentadienyl)tungsten and Per- methylzirconocene Dihydride: (r/5-CsHs)2W=C(H)OZr(H)(~-CsMes)* BY V. T. WOLCZANSKI, R. S. THRELKEL AND B. D. SANTARSIEROt Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, California 91125, USA (Received 7 March 1983; accepted 1 June 1983) Abstract. C31H42OWZr, Mr=705.75, monoclinic, P2Jn, a = 10.178 (3), b = 35.611 (14), c = 8.293 (2) A, fl= 109.93 (2)°, V= 2825 (2) A3, Z =4, Dx = 1.66 g cm-3, Mo K~t radiation, 2 = 0.71069 A, p=45cm-1, T~290K, F(000)=1400; R=0.054 for the 4584 reflections with F2 > 0 and 0.033 for the 3377 reflections with F~o > 30"F~. The short W-C bond length of 2.008 (7)A, moderately long C=O bond length of 1.350 (8) A, and relatively short Zr-O bond length of 1.970 (4)A suggest a strong W=C bond, a strong Zr-O