Tetra-chlorido-[N (2),N (2')-(di-methyl-silanedi-yl)bis-(N-tert-butyl-3-methyl-benzimid-amid-ato)-κ(2) N (2),N (2')]hafnium(IV).
The symmetric title mol-ecule, [Hf(C26H40N4Si)Cl4], lies about a twofold rotation axis. The Hf(IV) and Si atoms lie on the rotation axis with all other atoms being in general positions. The Hf(IV) atom is six-coordinated by two N atoms from the N (2),N (2')-(di-methyl-silanedi-yl)bis-(N-tert-butyl-3-methyl-benz-imid-amidate) ligand and four Cl(-) ions in a slightly distorted octa-hedral geometry. The two amidinate moieties are connected through the central Si atom with Si-N bond length of 1.762 (3) Å, generating the characteristic N-C-N-Si-N-C-N skeleton of a silyl-linked ansa-bis-(amidine) species.
Institute of Applied Chemistry, Shanxi University, Taiyuan 030006, People's Republic of China.
Tao
T
Wang
Institute of Applied Chemistry, Shanxi University, Taiyuan 030006, People's Republic of China.
Jian-Ping
JP
Zhao
Institute of Applied Chemistry, Shanxi University, Taiyuan 030006, People's Republic of China.
Sheng-Di
SD
Bai