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A new series of metal complex carboxylates(MCC)made of [Co(en)3]3+(MC)and either 2,6-naphthalenedicarboxylic(NDC)or 4,4-biphenyldicarboxylic(BPDC)were synthesized and structurally characterized.The four new compounds have a general formula(MC)2(C)3·n(guest)with the guests of dimethylformamide(DMF)and dimethyl sulfoxide(DMSO)and water.All the structures represent a pillared-layer type,where the layer consists of MC cations,carboxylate anions or water molecules via a large number of hydrogen bonds.The layers are pillared by the organic residues of NDC or BPDC,resulting in the inclusion cavities where the guest molecules reside.Although their topological structures are similar,they crystallize in different crystal structures due to the rearrangement of pillars and hydrogen-bonded layers. 相似文献
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采用固相微萃取(SPME) 气相色谱技术对涂料中有害物质进行快速检测和分析,对萃取条件和色谱条件进行优化.该方法所测定的苯系物在5.5~600μg L和5.5~800μg L内具有良好的线性,苯、甲苯、二甲苯的相关系数分别为0.9993、0.9996和0.9991;检出限达0.5~1.8μg L;重复测定的相对标准偏差小于2 1%. 相似文献
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