尾巴并非总是关键所在：由Co(NCS)与1,4-双（-烷氧基）-2,5-双（3,2':6',3″-三联吡啶-4'-基）苯配体组装而成的网状结构

A Tail Does Not Always Make a Difference: Assembly of Nets from Co(NCS) and 1,4-bis(-Alkyloxy)-2,5-bis(3,2':6',3″-terpyridin-4'-yl)benzene Ligands.

作者信息

Capomolla Simona S, Manfroni Giacomo, Prescimone Alessandro, Constable Edwin C, Housecroft Catherine E

机构信息

Department of Chemistry, University of Basel, BPR 1096, Mattenstrasse 24a, CH-4058 Basel, Switzerland.

出版信息

Molecules. 2022 Aug 5;27(15):4995. doi: 10.3390/molecules27154995.

The consistent assembly of a (6.8) net is observed in reactions of cobalt(II) thiocyanate with 1,4-bis(-alkyloxy)-2,5-bis(3,2':6',3″-terpyridin-4'-yl)benzene ligands in which the alkyloxy substituents are -propyl (ligand ), -butyl (), -pentyl (), -hexyl (), -heptyl (), and -octyl (). Crystals were grown by layering a methanol solution of Co(NCS) over a 1,2-dichlorobenzene solution of each ligand. The choice of crystallization solvents is critical in directing the assembly of the net. Single-crystal structures of [Co(NCS)()]3.5CHCl, [Co(NCS)()]5.5CHCl, [Co(NCS)()]4CHCl, [Co(NCS)()]3.8CHCl, [Co(NCS)()]3.1CHCl, and [Co(NCS)()]1.6CHCl2MeOH (CHCl = 1,2-dichlorobenzene) are presented and compared. The alkyloxy chains exhibit close to extended conformations and are accommodated in cavities in the lattice without perturbation of the coordination framework.

在钴（II）硫氰酸盐与1,4 - 双（-烷氧基）-2,5 - 双（3,2':6',3″-三联吡啶-4'-基）苯配体的反应中观察到（6.8）网络的一致组装，其中烷氧基取代基为-丙基（配体）、-丁基（）、-戊基（）、-己基（）、-庚基（）和-辛基（）。通过将Co（NCS）的甲醇溶液分层在每种配体的1,2 - 二氯苯溶液上生长晶体。结晶溶剂的选择对于引导网络的组装至关重要。给出并比较了[Co（NCS）（）]3.5CHCl、[Co（NCS）（）]5.5CHCl、[Co（NCS）（）]4CHCl、[Co（NCS）（）]3.8CHCl、[Co（NCS）（）]3.1CHCl和[Co（NCS）（）]1.6CHCl2MeOH（CHCl = 1,2 - 二氯苯）的单晶结构。烷氧基链呈现接近伸展的构象，并容纳在晶格的空腔中而不干扰配位框架。