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Single-crystal-to-single-crystal conversions of two metal-mediated photoreactive coordination polymers based on stereoselective [2 + 2] photocycloaddition reactions
CrystEngComm ( IF 2.6 ) Pub Date : 2017-10-24 00:00:00 , DOI: 10.1039/c7ce01402c
Jing-Min Chen 1, 2, 3, 4, 5 , Qian-Kun Zhou 1, 2, 3, 4, 5 , Yi-Xuan Hou 1, 2, 3, 4, 5 , Dong Liu 1, 2, 3, 4, 5
Affiliation  

Two photoreactive coordination polymers {[Zn(μ-OH2)(5-Me-1,3-bdc)(2,3′-bpe)]·H2O}n (1) and {[Ag2(5-Me-1,3-Hbdc)(2,3′-bpe)2][Ag(5-Me-1,3-bdc)(2,3′-bpe)]·H2O}n (3) have been prepared based on the hydrothermal reactions between an asymmetrical olefin 1-(2-pyridyl)-2-(3-pyridyl)-ethylene (2,3′-bpe) and an auxiliary ligand 5-methyl-1,3-benzenedicarboxylic acid (5-Me-1,3-H2bdc) in the presence of Zn(NO3)2·6H2O and AgNO3, respectively. UV irradiation of these two photoreactive compounds 1 and 3 resulted in the formation of two new coordination polymers {[Zn(μ-OH2)(5-Me-1,3-bdc)(HT-bpbpcb)0.5]·H2O}n (2, HT-bpbpcb = 1,3-bis(2-pyridyl)-2,4-bis(3-pyridyl)cyclobutane) and {[Ag2(5-Me-1,3-Hbdc)(HH-bpbpcb)][Ag(5-Me-1,3-bdc)(2,3′-bpe)]·H2O}n (4, HH-bpbpcb = 1,2-bis(2-pyridyl)-3,4-bis(3-pyridyl)cyclobutane) based on stereoselective [2 + 2] photodimerization reactions through single-crystal-to-single-crystal conversions. These two photoreactions were further confirmed by 1H NMR spectroscopy and powder X-ray diffraction.

中文翻译:

基于立构选择性[2 + 2]光环加成反应的两种金属介导的光反应配位聚合物的单晶至单晶转化

两个光反应性的配位聚合物{[锌(μ-OH 2)(5-ME-1,3-BDC)(2,3'- BPE)]·H 2 ö} Ñ1)和{[银2(5- Me-1,3-Hbdc)(2,3'-bpe)2 ] [Ag(5-Me-1,3-bdc)(2,3'-bpe)]·H 2 O} n3)具有基于不对称烯烃1-(2-吡啶基)-2-(3-吡啶基)-乙烯(2,3'-bpe)与辅助配体5-甲基-1,3-苯二甲酸之间的水热反应制备Zn(NO 32 ·6H 2 O和AgNO 3存在下的(5-Me-1,3-H 2 bdc), 分别。这些两个光反应性化合物的UV照射13产生了两个新的配位聚合物{[锌(μ-OH的形成2)(5-ME-1,3-BDC)(HT-bpbpcb)0.5 ]·H 2 ö } n2,HT-bpbpcb = 1,3-双(2-吡啶基)-2,4-双(3-吡啶基)环丁烷)和{[Ag 2(5-Me-1,3-Hbdc)(HH -bpbpcb)] [Ag(5-Me-1,3-bdc)(2,3'-bpe)]·H 2 O} n4,HH-bpbpcb = 1,2-双(2-吡啶基)- 3,4-双(3-吡啶基)环丁烷),基于通过单晶至单晶转化的立体选择性[2 + 2]光二聚反应。这两个光反应进一步得到了证实1 H NMR光谱和粉末X射线衍射。
更新日期:2017-11-20
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