Abstract
The synthesis and characterization of complexes with a tridentate amido-diamine ligand -N(CH2CH2NMe2) 2, [ClZnN(CH2CH2NMe2) 2]2 (1), [EtZnN(CH2CH2NMe 2)2]2 (2), {Zn[N(CH2CH 2NMe2)2]2}2 (3) and [iBu2NZnN(CH2CH2NMe 2)2]2 (4), are described. Compounds 1 (57% yield) and 2 (49% yield) were obtained from the reactions of ZnCl2 with 1 equiv. of LiN(CH2CH2NMe2)2 and ZnEt2 with excess HN(CH2CH2NMe 2)2, respectively. Compounds 3 (52% yield) and 4 (75% yield) were isolated from the reactions of [Zn(NiBu2) 2]2 with HN(CH2CH2NMe 2)2 in 1:4 and 1:2 molar ratios, respectively. Mass spectral data and NMR analyses suggested that all four compounds were dimeric. The solid-state structures of compounds 2 and 3 were determined via X-ray crystallography. Both compounds were centrosymmetric containing a four-membered Zn2N2 ring with bridging amido ligands. In both structures, one NMe2 group in each bridging ligand bonded to a Zn center forming a five-membered ring. The ethyl groups in 2 and the second -N(CH2CH2NMe2)2 ligand in 3 occupied the terminal positions.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 279-285 |
| Number of pages | 7 |
| Journal | Polyhedron |
| Volume | 25 |
| Issue number | 2 |
| DOIs | |
| State | Published - Jan 23 2006 |
Bibliographical note
Funding Information:We thank the National Science Foundation for the financial support through a Grant CHE-03159540.
Keywords
- Amide
- Amido
- Dimer
- Structure
- Tridentate
- Zinc