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Characterization of cobalt oxalate synthesis of organic acid complexes and new with the material o- phenanthroline

Author: SunZhuo
Tutor: XiongMing
School: Chinese Geology University (Beijing)
Course: Mineralogy
Keywords: Solvothermal New complex - phenanthroline cobalt oxalate Crystal structure determination
CLC: O641.4
Type: Master's thesis
Year: 2005
Downloads: 159
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Abstract


Amino acids are an important part of the protein , has a special role in the process of life-sustaining metabolic , and trace element content of the human body micro , but it may play an extremely important role in the life processes such as growth and development , metabolism . Trace elements in the human body can not synthesize , and only from the outside world food intake , synthetic amino acid complexes drugs and animal feed hot research in human nutrition . Amino acid complex application and mechanism reported and more research , but very little physical properties and structure of the amino acid complexes . In this study, in recent years, especially by concern solvothermal synthetic amino acid complexes, to obtain a new complex crystal , is confirmed by the infrared spectrum having a carboxyl group and a perchlorate ; CD spectrum confirmed that this complex is not symmetric center; electron probe confirmed the presence of the cobalt atom and a chlorine atom . Measured using single-crystal diffraction method complexes phenanthroline cobalt oxalate crystals are monoclinic system , space group : Cm , unit cell parameters : a = 1.6319 ( 4 ) nm , b = 1.5498 ( 4) nm c = 1.1541 (3) nm, β = 116.159 (5) °, V = 2.6198 (11) nm 3 ; chemical formula : the C 51 < / sub > H 28 < / sub> O 4 N 8 CH 3 OHClO 4 Co 2 , Z = 2. Co in its crystal structure is a hexacoordination respectively with the oxygen atom , a nitrogen atom , and carbon atoms connected to form a three five - membered ring , the Co - O bond lengths , respectively 0.2118nm and 0.2073nm , Co - N bond length in 0.2093nm the -0.2144nm . O-phenanthroline in the crystal structure of the cobalt oxalate , the Phenanthroline cobalt oxalate molecules in the space parallel to the b-axis direction are arranged in the vertical c-axis direction was layered arrangement , perchlorate , and methanol molecules distributed in the interlayer . In addition , the study also completed the synthesis and structural analysis of single crystals of calcium tartrate . Calcium tartrate is orthorhombic , space group P2 1 2 1 2 1 , unit cell parameters : a = 0.92146 ( 10 ) nm , b = 0.96191 (11) nm, c = 1.05625 (12) nm, V = 0.93622 (18) nm 3 ; chemical formula for the CaC 4 H 4 < / sub> O 6 . 4H 2 O, Z = 4.

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CLC: > Mathematical sciences and chemical > Chemistry > Physical Chemistry ( theoretical chemistry ),chemical physics > Structural Chemistry > Complex chemistry ( coordination chemistry )
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