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Metallic coordination selectivity effect in the trinuclear M-3(RCOO)(6) secondary building units of three layer metal-carboxylate frameworks
Wang, Xiao-Feng; Wang, Hongqing; Wang, Shuhong; Li, Jun; Li, Shenbiao; Zheng, Kang-Cheng; Han, Xin; Wang, XF (reprint author), Univ South China, Sch Chem & Chem Engn, Hengyang 421001, Peoples R China.; Wang, SH (reprint author), Chinese Acad Sci, South China Sea Inst Oceanol, CAS Key Lab Marginal Sea Geol, Guangzhou 510301, Guangdong, Peoples R China.; Li, J (reprint author), Guangdong Univ Educ, Dept Chem, Guangzhou 510303, Guangdong, Peoples R China.
2016
Source PublicationRSC ADVANCES
Volume6Issue:18Pages:14522-14530
AbstractThree two-dimensional metal-carboxylate frameworks (MCFs), namely Zn-3(BDC)(3)(py)(2)center dot 2DMF (1), Mn-3(BDC)(3)(DMF)(4) (2) and Co-3(BDC)(3)(DMF)(2)(py)(2) (3) [H2BDC = 1,4-benzene dicarboxylic acid, py = pyridine, DMF = N,N'-dimethylformamide], have been synthesized by reaction of the M(NO3)(2) and H2BDC with py as base and DMF as solvent, under the microwave-assisted solvo-thermal conditions. Three MCFs were characterized by single crystal X-ray diffraction and mensurated its fluorescent or magnetic behaviors. The structural analyses reveal that 1-3 are constructed of the slightly dissimilar carboxylate bridged linear M-3(RCOO)(6)(LT)(2/4) clusters where the coordination terminal ligand (L-T) are py in 1, DMF in 2 and py/DMF in 3, respectively. The results demonstrated the different metal ions in two side of every SBU inclined to coordinate their respectively selected L-T. The time-dependent density functional theory (TDDFT) calculations of 1 show that the emission peak of 423-428 nm (the experimental value is 425 nm) might be derived from the energy transition on the ligand-to-ligand charge transfer (LLCT) where electron densities residing on the pi-bonding orbital of BDC2- are transferred to the pi*-anti-bonding orbital of pyridine. Variable-temperature magnetic susceptibility studies indicate the presence of antiferromagnetic exchange coupling within the M-3-units of 2 and 3.
Department[Wang, Xiao-Feng; Wang, Hongqing] Univ South China, Sch Chem & Chem Engn, Hengyang 421001, Peoples R China; [Wang, Shuhong] Chinese Acad Sci, South China Sea Inst Oceanol, CAS Key Lab Marginal Sea Geol, Guangzhou 510301, Guangdong, Peoples R China; [Li, Jun] Guangdong Univ Educ, Dept Chem, Guangzhou 510303, Guangdong, Peoples R China; [Li, Shenbiao; Han, Xin] Cent China Normal Univ, Sch Chem, Wuhan 430079, Peoples R China; [Zheng, Kang-Cheng] Sun Yat Sen Univ, Sch Chem & Chem Engn, Guangzhou 510275, Guangdong, Peoples R China ; 边缘海地质
Subject AreaChemistry
Document Type期刊论文
Identifierhttp://ir.scsio.ac.cn/handle/344004/15604
Collection中科院边缘海地质重点实验室
Corresponding AuthorWang, XF (reprint author), Univ South China, Sch Chem & Chem Engn, Hengyang 421001, Peoples R China.; Wang, SH (reprint author), Chinese Acad Sci, South China Sea Inst Oceanol, CAS Key Lab Marginal Sea Geol, Guangzhou 510301, Guangdong, Peoples R China.; Li, J (reprint author), Guangdong Univ Educ, Dept Chem, Guangzhou 510303, Guangdong, Peoples R China.
Recommended Citation
GB/T 7714
Wang, Xiao-Feng,Wang, Hongqing,Wang, Shuhong,et al. Metallic coordination selectivity effect in the trinuclear M-3(RCOO)(6) secondary building units of three layer metal-carboxylate frameworks[J]. RSC ADVANCES,2016,6(18):14522-14530.
APA Wang, Xiao-Feng.,Wang, Hongqing.,Wang, Shuhong.,Li, Jun.,Li, Shenbiao.,...&Li, J .(2016).Metallic coordination selectivity effect in the trinuclear M-3(RCOO)(6) secondary building units of three layer metal-carboxylate frameworks.RSC ADVANCES,6(18),14522-14530.
MLA Wang, Xiao-Feng,et al."Metallic coordination selectivity effect in the trinuclear M-3(RCOO)(6) secondary building units of three layer metal-carboxylate frameworks".RSC ADVANCES 6.18(2016):14522-14530.
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