典型文献
Reversible on-off switching of spin-crossover behavior via photochemical [2+2] cycloaddition reaction
文献摘要：
Herein,we report the first example showing the reversible on-off switching of spin-crossover (SCO) property by solid state photochemical[2+2]reaction.The ultraviolet (UV) light-induced[2+2]cycloaddition reaction of 3-spy ligands in a two-dimensional (2D) Hofmann-type framework[Fe(3-spy)2{Pd(CN)4}](1,3-spy=3-styrylpyridine),which shows a hysteretic two-step SCO behavior,gives a 3D Hofmann-type framework[Fe(rctt-3-ppcb){Pd(CN)4}](2,rctt-3-ppcb=rctt-l,3-bis(3-pyridyl)-2,4-bis(phenyl)cyclobutane,r=reference group,c=cis and t=-trans) accompanied with the disappearing of SCO properties.Moreover,upon heating at 250 ℃ for 12 h,the rctt-3-ppcb ligand in 2 could be partially dedimerized to 3-spy with 68％ completion through single-crystal-to-single-crystal (SCSC) transformation,giving the annealing complexes[Fe(3-spy)1.36(rctt-3-ppcb)0.32 {Pd(CN)4}](3)which display an incomplete SCO behavior.The 2 (=) 3 interconversion is successfully achieved via continuous UV irradiation and thermal annealing,demonstrating the effectiveness of photochemical[2+2]reaction on switching on-off SCO properties.
文献关键词：
中图分类号：
作者姓名：
Long-Fei Wang;Bang-Heng Lv;Feng-Tai Wu;Guo-Zhang Huang;Ze-Yu Ruan;Yan-Cong Chen;Min Liu;Zhao-Ping Ni;Ming-Liang Tong
作者机构：
Key Laboratory of Bioinorganic and Synthetic Chemistry of Ministry of Education,School of Chemistry,Sun Yat-Sen University,Guangzhou 510006,China;School of Nuclear Science and Technology,University of South China,Hengyang 421001,China
文献出处：
引用格式：
[1]Long-Fei Wang;Bang-Heng Lv;Feng-Tai Wu;Guo-Zhang Huang;Ze-Yu Ruan;Yan-Cong Chen;Min Liu;Zhao-Ping Ni;Ming-Liang Tong-.Reversible on-off switching of spin-crossover behavior via photochemical [2+2] cycloaddition reaction)[J].中国科学:化学（英文版）,2022(01):120-127
A类：
spy,styrylpyridine,rctt,ppcb,cyclobutane,dedimerized,SCSC
B类：
Reversible,off,switching,spin,crossover,behavior,via,photochemical,2+2,cycloaddition,reaction,Herein,we,report,first,example,showing,reversible,SCO,property,by,solid,state,ultraviolet,UV,light,induced,ligands,two,dimensional,2D,Hofmann,type,framework,Pd,CN,which,shows,hysteretic,step,gives,bis,pyridyl,phenyl,reference,group,cis,accompanied,disappearing,properties,Moreover,upon,heating,could,partially,completion,through,single,crystal,transformation,giving,annealing,complexes,display,incomplete,interconversion,successfully,achieved,continuous,irradiation,thermal,demonstrating,effectiveness
AB值：
0.441849
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