Chem. J. Chinese Universities ›› 2013, Vol. 34 ›› Issue (4): 952.doi: 10.7503/cjcu20120694

• Physical Chemistry • Previous Articles     Next Articles

Synthesis, Crystal Structure and Quantum-chemical Calculation of Novel π-Extended Tetrathiafulvalene Derivatives

ZHU Yu-Lan1,2, CAO Li1,2, MA Kui-Rong1, TIAN Li-Bin1, WANG Xin-Long2, SU Zhong-Min2   

  1. 1. Jiangsu Key Laboratory for Chemistry of Low-dimensional Materials, School of Chemistry and Chemical Engineering, Huaiyin Normal University, Huaian 223300, China;
    2. Faculty of Chemistry, Northeast Normal University, Changchun 130024, China
  • Received:2012-07-24 Online:2013-04-10 Published:2013-03-15

Abstract:

Two novel π-extended tetrathiafulvalene derivatives, N,N'-bisbenzene-1,4-diamine(5a) and N,N'-bisbenzene-\{1,4-diamine(5b) were synthesized with p-phenylenediamine as starting material. The molecular structures were identified and characterized by 1H NMR, mass spectrometry(MS), Fourier transform infrared(FTIR) and single-crystal X-ray diffraction(XRD). Crystal structure analysis shows that compounds 5a and 5b belong to triclinic and monoclinic system, with space group P1 and P21/n, respectively. The planes of the bis(imino)benzene in compounds 5a and 5b twisted from the plane of the two dithiole rings with a dihedral angle of 87.61° for compound 5a, and 43.77° for compound 5b, respectively. Moreover, the density functional theory(DFT) calculations are also carried out with Gaussian 09 program at the B3LYP/6-31+G(d,p) level to investigate the frontier orbital, electrostatic potential and spectroscopy. The experimental results are generally in good agreement with those obtained from DFT calculations.

Key words: Tetrathiafulvalene, Crystal structure, Density functional theory

CLC Number: 

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