Substituted alkylamine adducts of cobalt (II), nickel(II) and zinc(II) acetylacetonate |
| |
| Affiliation: | 1. Engineering Laboratory of Advanced Energy Materials, Ningbo Institute of Materials Technology & Engineering, Chinese Academy of Sciences, Ningbo 315201, China;2. School of Materials Science and Chemical Engineering, Ningbo University, Ningbo 315211, China;3. Harbin Institute of Technology, 92 West Dazhi Street, Nan Gang District, Harbin 150001, PR China;4. Nanyang Technological University, 50 Nanyang Avenue, Singapore;5. Adsil (Xiamen) New Materials Technology CO., LTD, Xinglin West Road 42–15#, Jimei District, Xiamen City, China;1. School of Resources and Environmental Sciences, Wuhan University, Wuhan 430079, China;2. Hubei International Scientific and Technological Cooperation Base of Sustainable Resource and Energy, Wuhan University, Wuhan 430079, China |
| |
| Abstract: | Thirty-seven adducts of cobalt(II), nickel(II) and zinc(II) acetylacetonate of formula [M(AA)2(RNH2)n] (M = Co, Ni, Zn; AA = acetylacetonate ion; R = H, alkyl, aralkyl or phenyl substituent; n = 1 or 2) have been synthesized. With one exception the cobalt and nickel adducts are 6-co-ordinate but mono(amine) adducts are fairly common in the zinc series. Adduct formation induces a considerable shift of νM-O to lower frequencies in all three series (relative to the parent acetylacetonate) and a downfield shift of amino proton NMR signal in the zinc series (relative to the free amine). Correlations between the Taft polar substituent constants of the amine substituents and the i.r. and NMR data show that electron releasing substituents decrease the M-O bond order and increase the shielding of the amino protons. |
| |
| Keywords: | |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
