Chem. J. Chinese Universities ›› 1999, Vol. 20 ›› Issue (1): 25.

• Articles • Previous Articles     Next Articles

Preparation and Characterization of 14T2Cu/MCM41 and 140Cu/MCM41

CAO Xi-Chuan, LI Guo-Dong, CHEN Jie-Sheng, MA Shu-Jie, XU Ru-Ren   

  1. Department of Chemistry, Key Laboratory of Inorganic Synthesis and Preparative Chemistry, Jilin University, Changchun, 130023
  • Received:1998-01-08 Online:1999-01-24 Published:1999-01-24

Abstract: MCM-41 m aterials loaded with cupric complexes of 4, 8 bis(2-thienylmethyl 1, 4, 8, 11 tetraazacyclotetradecane 12, 14 dione(14T2Cu)and 1, 4, 8, 11 tet raazacyclotetradecane 12, 14 dione(140Cu)were prepared by mixing The corresponding complexes respectively with silica form of mesoporous molecular sieve MCM-41.The composite materials were characterized by powder XRD, UV-Vis and ESR spect roscopies.The absorption max imum for 14T2Cu/MCM-41 shifts towards The higher frequency by 19 nm in comparison with 14T2 Cu complex in met hanol solution, whereas The absorption for 140Cu/MCM-41 is close to that for 140Cu in methanol.Both 14T2Cu and 140Cu complexes behave anisotropicaly within The channel of MCM-41 material on the basis of ESR spectra.

Key words: Dioxotetraam ines, Mesoporous, MCM41, ESR, UV-Vis

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