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2006年11月23日

【期刊论文】Organic and Semiorganic Nonlinear Optical Materials**

方奇， By Min-hua Jiang* and Qi Fang

Adv. Mater. 1999, 11, No.13，-0001，（）：

-1年11月30日

摘要

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2006年11月23日

【期刊论文】Synthesis, structure, and conductivity of molecular conductor (PyEt)[Ni(dmit)2]2

方奇， FANG Qi，， XU Wen， LEI Hong， XUE Gang， CHEN Hongyu， XU Cuiying， JIA Chunyang & ZHANG Deqing

Vol. 46 No.6 SCIENCE IN CHINA (Series B) December 2003，-0001，（）：

-1年11月30日

摘要

A new electrical conductive crystal PyEt[Ni(dmit)2]2 (dmit=4,5-dimercapto-1,3-dithiole-2-thione) has been synthesized and its X-ray structure has been determined to be in monoclinic system, C2/c space group. In PyEt[Ni(dmit)2]2 crystal, the conducting component [Ni(dmit)2]0.5− is face-to-face packed forming molecular column along the c-direction, and these molecular columns are then side-by-side extended along the a-direction forming a kind of two-dimensional conducting sheet on (010). The measured conductivity at room temperature along a certain direction on (010) plane is 10 S cm−1. From 282 to 269 K, the crystal shows metallic behavior but changes to semiconductor below 269 K. Based on the measured crystal structure and calculated band structure, this conductor-semiconductor phase transformation can be primarily interpreted: The metallic conductivity is corresponding to the uniform molecular column and the atomic-lattice-chain structure of Ni chain, while the semi-conductive behavior to staggered molecular column and the atomic-zigzag-chain structure of Ni chain.

molecular conductor,， synthesis,， crystal structure,， energy band,， conductivity.，

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2006年11月07日

【期刊论文】Syntheses, structures and second-order nonlinear optical properties of octupolar compounds: 2,4,6-tri-substituted s-triazine

方奇， Y.Z. Cui a， b， Q. Fang a， *， H. Lei c， G. Xue a， W.T. Yu a

Chemical Physics Letters 377(2003)507-511，-0001，（）：

-1年11月30日

摘要

Three compounds with three p-substituted styryls attaching to the central s-triazine have been synthesized and two crystals determined to be in non-centrosymmetric Cmc21 and Pmn21 space groups, respectively. All of them in solid state are second harmonic generation (SHG) active and two of them show powder SHG intensities one order of magnitude that of urea.

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2006年11月07日

【期刊论文】Triaryl Boron-Based A-π-A vs Triaryl Nitrogen-Based D-π-D Quadrupolar Compounds for Single-and Two-Photon Excited Fluorescence

方奇， Zhi-Qiang Liu， Qi Fang， * Du-Xia Cao， Dong Wang， and Gui-Bao Xu

Inorganic Chemistry Communications 7(2004)1157-1160，-0001，（）：

-1年11月30日

摘要

Three new A-π-A-type compounds with trivalent boron, protected by two mesityl groups, as electron acceptor have been synthesized and investigated together with their two diphenylamino-ended D-ð-D analogues. These boranes exhibit large two-photon absorption cross sections and high fluorescence quantum yields.

Palladium complex， Synthesis， X-ray crystal structure， Conductivity

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2006年11月07日

【期刊论文】Synthesis and characterization of highly conducting PyH[Pd(dmit)2]2 crystal

方奇， Qi Fang a， b， *， Wen Xu a， Hong Lei c， Cui-Ying Xu d， Bin Zhang d， Dao-Ben Zhu d

Inorganic Chemistry Communications 7(2004)1157-1160，-0001，（）：

-1年11月30日

摘要

A new molecular conductor PyH[Pd(dmit)2]2 (PyH=pyridinium, dmit=2-thioxo-1,3-dithiole-4,5-dithiolato) has been synthesized and structurally investigated. The room temperature conductivity at a certain direction on (001) plane was measured to be as high as a 2

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