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Two New Copper Complexes by H_4AQTC(Anthraquinone-1,4,5,8-tetracarboxylic Acid):Syntheses,Structures and Properties

闫卫红  曾宪彩  
【摘要】:Two new complexes[Cu(AQTC)_(0.5)(H_2O)_3]·3H_2O}_n (1,H_4AQTC=anthraquinone-1,4,5,8-tetracarboxylic acid) and Cu[(Py)_2C(OH)_2]_2(H_2AQTC)·2H_2O (2,(Py)_2CO=di-2-pyridyl ketone) have been prepared and characterized by elemental analyses and IR spectroscopy.X-ray crystallographic studies show that complex 1crystallizes in monoclinic space group C2/m and complex 2 in monoclinic space group P2_1/c.Complex 1 features a1D chain structure by carboxyl oxygen atoms.Complex 2 displays a mononuclear structure and anions and cations are separated.What's interesting is that the ligand of H_4AQTC with eight carboxyl oxygen atoms and two quinone oxygen atoms does not directly coordinate with metals,and only exist as a counter-anion in complex 2.Three-dimensional structures of two complexes are formed by intermolecular interactions.The thermogravimetric analyses of two complexes are investigated.The luminescent properties of complex 1 are investigated as well.

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