Open AccessThe influence of an acetyl group on the cyclopentadienyl ring in the formation of Sn–Mo(W) complexes by nucleophilic displacement reactions, crystal and molecular structure of CH 3 COC 5 H 4 (CO) 3 MoSnPh 2 Cl
Author(s) -
Wang JiTao,
He HaiYang,
Xu YuMing,
Sun Jie,
Kong XiangFu
Publication year - 1998
Publication title -
heteroatom chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.283
H-Index - 42
eISSN - 1098-1071
pISSN - 1042-7163
DOI - 10.1002/(sici)1098-1071(1998)9:2<169::aid-hc12>3.0.co;2-p
Subject(s) - chemistry , ring (chemistry) , nucleophile , orthorhombic crystal system , heteroatom , crystal structure , cyclopentadienyl complex , crystallography , bimetallic strip , halogen , medicinal chemistry , group (periodic table) , stereochemistry , catalysis , organic chemistry , alkyl
Sodium tricarbonylacetylcyclopentadienylmolybde‐num (tungsten) reacted with Ph 2 SnL 2 (L=Cl, Br) in a 1:1 ratio or even a 4:1 ratio only to afford bimetallic complexes CH 3 CO‐C 5 H 4 (CO) 3 MSnPh 2 L (M=Mo. W; L=Cl or Br), which have been characterized by elemental analyses, IR and 1 H NMR spectroscopy. The acetyl group on the Cp ring exerts an electron‐withdrawing effect that makes the organomolybdenum anion a less effective nucleophilic agent in displacing the remaining halogen from the CH 3 COC 5 H 4 Mo‐(CO) 3 .SnPh 2 L. The bimetallic complex could be isolated, and the crystal structure of the titled complex is orthorhombic, a = 16.271, b = 10.247(2), c = 14.450(2) Å, Z = 4, space group Pna2 1 , and the Mo atom has a 3:4 piano stool structure with an Sn‐Mo bond length of 2.7683(6) Å. © 1998 John Wiley & Sons, Inc. Heteroatom Chem 9:169–172, 1998