Mei Tang

An organic copolymer-inorganic hybrid material, calcium phosphonate-phosphate (CaPS-PVPA), is fabricated under mild conditions. In particular, CaPS-PVPA is not prepared with traditional methods such as a hydrothermal one, but with amorphous reactions for a simple, fast, cost-effective and environmentally benign approach. Characterization shows that CaPS-PVPA is a layered crystalline mesoporous material, and could be readily used as a catalytic support. A catalyst with immobilization of chiral salen Mn(iii) onto CaPS-PVPA demonstrate a superior catalytic disposition (conv. > 99% and ee > 99%), which offers great potential for industry scale applications.

Phosphonate

Hybrid material

10.1039/c4dt01374c

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Citations (12)

The elastic constants for Fe₃AlX (X=B, C and N) with anti-perovskite structure

Physica Scripta (2009)

Yifang Ouyang Mei Tang Jie Fang Peng Xiang Yong Du

The total energy and bulk properties of Fe 3 Al X ( X =B, C and N) with anti-perovskite structure at T =0 K were calculated by using the projector augmented-wave (PAW) approach within generalized gradient approximation (GGA) and local density approximation (LDA). The lattice constant, bulk modulus and its pressure derivative, elastic constants, shear modulus, Poisson's ratio and Debye temperature both in paramagnetic and ferromagnetic states for Fe 3 Al X have been calculated. The calculations indicate that the ground states of Fe 3 AlB and Fe 3 AlC are ferromagnetic, while for Fe 3 AlN its ground state is paramagnetic. The calculated total energy within LDA is lower than that within GGA. The calculated lattice constant of Fe 3 AlC within GGA is in good agreement with experimental value, and this indicates that the calculations from GGA are more accurate than those from LDA. The calculated elastic constants and bulk moduli agree with other theoretical results available. The average magnetic moments of Fe in Fe 3 Al X ( X =B, C and N) are 1.483, 1.103 and 0.0 μ B (GGA), or 1.300, 0.401 and 0.0 μ B (LDA), respectively.

Debye model

Lattice constant

Shear modulus

10.1088/0031-8949/80/05/055603

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Citations (8)

Preparation and electro-optical characterization of aminosilane-modified silica gel dispersed liquid crystal films by the sol–gel process

Materials Letters (2012)

Jiayu Guo Mei Tang Haifeng Ling Yuan Li

Siloxane

Crystal (programming language)

10.1016/j.matlet.2012.09.047