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Cp 3 Zr(acetonitrile) + : Structure of an Electron‐Rich Organometallic d 0 ‐Cation
Author(s) -
Brackemeyer Thomas,
Erker Gerhard,
Fröhlich Roland,
Prigge Jörg,
Peuchert Ulrich
Publication year - 1997
Publication title -
chemische berichte
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 0009-2940
DOI - 10.1002/cber.19971300714
Subject(s) - chemistry , acetonitrile , cyclopentadienyl complex , crystal structure , diffractometer , crystallography , x ray crystallography , molecule , ligand (biochemistry) , group 2 organometallic chemistry , stereochemistry , diffraction , organic chemistry , biochemistry , physics , receptor , optics , catalysis
The organometallic salt [Cp 3 Zr(N≡C‐CH 3 )] + [CH 3 B‐(C 6 F 5 ) 3 ] − ( 3a ) has been prepared by treatment of Cp 3 ZrCH 3 with B(C 6 F 5 ) 3 followed by the addition of acetonitrile. X‐ray crystal structure analysis of 3a shows that its cation consists of three uniformly coordinated η 5 ‐cyclopentadienyl ligands about the zirconium atom. The acetonitrile ligand is end‐on coordinated. In the linear [Zr] ‐N≡C‐CH 3 unit the C≡N triple bond [N‐C2 1.126(5) Å] is slightly shorter than in the free acetonitrile molecule [d C≡N = 1.141(2) Å], the structure of which was determined as a reference by X‐ray diffraction of a crystal obtained by IR‐laser‐induced zone melting on the diffractometer.