Decomposition behavior of M(DPM)n (DPM = 2,2,6,6-tetramethyl-3,5-heptanedionato; n = 2, 3, 4).
The decomposition behavior of M(DPM)n (DPM = 2,2,6,6-tetramethyl-3,5-heptanedionato; M = Sr, Ba, Cu, Sm, Y, Gd, La, Pr, Fe, Co, Cr, Mn, Ce, Zr; n = 2-4) was studied in detail with infrared spectroscopy and mass spectrometry. The results indicated that the chemical bonds in these compounds dissociate generally following the sequence of C-O > M-O > C-C(CH3)3 > C-C and C-H at elevated temperatures. The decomposition processes of M(DPM)n are strongly influenced by the coordination number and central metal ion radius. In addition, the decomposed products, in air atmosphere, varied from metal oxides to metal carbonates associated with different M(DPM)n.
Jiang
Yinzhu
Y
USTC Laboratory for Solid State Chemistry & Inorganic Membranes, Department of Materials Science and Engineering, University of Science and Technology of China (USTC), Hefei, 230026, People's Republic of China.
Liu
Mingfei
M
Wang
Yanyan
Y
Song
Haizheng
H
Gao
Jianfeng
J
Meng
Guangyao
G