Reversible on-off switching of spin-crossover behavior via photochemical [2+2] cycloaddition reaction

Reversible on-off switching of spin-crossover behavior via photochemical [2+2] cycloaddition reaction
复制标题

通过光化学 [2 2] 环加成反应实现自旋交叉行为的可逆开关

DOI:
10.1007/s11426-021-1093-2
复制
发表时间:
2021-11
期刊:
Science China Chemistry
影响因子:
--
通讯作者:
Tong Ming-Liang
Tong Ming-Liang
中科院分区:
其他
文献类型:
--
作者:
Wang Long-Fei;Lv Bang-Heng;Wu Feng-Tai;Huang Guo-Zhang;Ruan Ze-Yu;Chen Yan-Cong;Liu Min;Ni Zhao-Ping;Tong Ming-Liang

文献摘要

参考文献

相似文献

本文报道了第一个利用固态光化学[2+2]反应实现自旋交叉(SCO)可逆开关的例子。在二维Hofmann骨架[Fe(3-spy)2 {Pd(CN)4 }]中,紫外光诱导3-spy配体的[2+2]环加成反应(1,3-spy=3-苯乙烯基吡啶),其显示滞后的两步SCO行为,给出3D Hofmann型骨架[Fe(rctt-3-ppcb){Pd(CN)4 }](2,rctt-3-ppcb= rctt-1,3-双(3-吡啶基)-2,4-双(苯基)环丁烷,r =参比基团,c =顺式,t =反式)伴随着SCO性质的消失。此外,在250 °C下加热12小时后,2中的rctt-3-ppcb配体可以通过单晶到单晶(SCSC)转化以68%的完成率部分地去二聚为3-spy,得到退火配合物[Fe(3-spy)1.36(rctt-3-ppcb)0.32 {Pd(CN)4 }](3),其显示不完全的SCO行为。通过连续紫外光照射和热退火成功地实现了2 → 3相互转化,证明了光化学[2+2]反应对开关SCO性能的有效性。
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 -1,3-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 °C 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.
DOI: 10.1021/jp106583f
发表时间: 2010-11
影响因子: 3.7
作者:
A. Tissot;M. Boillot;S. Pillet;E. Codjovi;K. Boukheddaden;L. M. L. Daku-L.-M.-L.-Daku-16183618
通讯作者: A. Tissot;M. Boillot;S. Pillet;E. Codjovi;K. Boukheddaden;L. M. L. Daku-L.-M.-L.-Daku-16183618
DOI: 10.1002/chem.201300767
发表时间: 2013-05
期刊: Chemistry
影响因子: --
作者:
M. Nihei;Yukihide Suzuki;N. Kimura;Yosuke Kera;H. Oshio
通讯作者: M. Nihei;Yukihide Suzuki;N. Kimura;Yosuke Kera;H. Oshio
DOI: 10.1021/acs.inorgchem.6b00446
发表时间: 2016-05-16
影响因子: 4.6
作者:
Kucheriv, Olesia I.;Shylin, Sergii I.;Gural'skiy, Il'ya A.
通讯作者: Gural'skiy, Il'ya A.
胺官能化金属有机框架中的客体可切换多步自旋跃迁
DOI: 10.1002/anie.201708973
发表时间: 2017-11-20
影响因子: 16.6
作者:
Liu, Wei;Peng, Yuan-Yuan;Tong, Ming-Liang
通讯作者: Tong, Ming-Liang