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3D coordination polymer of copper (II)-potassium (I): Crystal structure and thermal decomposition kinetics |
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| Authors: | Xiao-Qing Shen Hai-Bin Qiao Hong-Yun Zhang Hong-Lei Liu Pei-Kun Chen |
| Affiliation: | a College of Material Engineering, Zhengzhou University, Zhengzhou 450052, China b Department of Chemistry, Zhengzhou University, Zhengzhou, 450052, China c College of Chemistry, Northeast Normal University, Changchun 130024, China |
| Abstract: | A new heterometallacrown coordination polymer [K2Cu(NPA)2(H2O)4]n (where H2NPA = 3-nitro-phthalic acid) has been synthesized and it’s crystal structure has been elucidated. In the complex, the o-phthalate group coordinates to metal atoms behaving as both tetradentate and heptadentate coordination, the modes of which have been found for the first time. The thermal behaviors of this complex and the thermal decomposition kinetics have been studied. Kinetic analysis shows that the decomposition of title complex in the main range acts as two separate transitions with the first one being a double-step following reaction,  , and the second being a three-step following reaction of t:f,f,  . The kinetic parameters of these processes were also obtained. |
| Keywords: | Copper complexes Crystal structure Thermal behaviors Kinetics |
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