Metal-organogermanate frameworks built by two kinds of infinite Ge-O chains with high thermostability and luminescent properties.
A bifunctional metalloligand with metal-C (Ge-C) bonds, bis(carboxyethylgermanium) sesquioxide (H(2)E(2)Ge(2)O(3), where E = -CH(2)CH(2)COO(-)), has been used to make metal-organometallic frameworks (MOMFs) Cd(1.5)(E(3)Ge(3)O(5)) (1) and Pb(E(2)Ge(2)O(3)) (2). In the structures, the inorganic Ge(2)O(3) cores of the metalloligands polymerize to form two kinds of infinite Ge-O chains, and the organic carboxyls induce the Cd and Pb ions to produce Cd-O and Pb-O chains. Further, the Ge-O chains link the Cd-O/Pb-O chains via -CH(2)CH(2)- groups to result in two novel MOMFs, showing high thermostability and blue-violet emission.
State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, China.
Gao-Juan
GJ
Cao
Shou-Tian
ST
Zheng
Na
N
Zhao
Jian-Ke
JK
Sun
Guo-Yu
GY
Yang