Slyvka Yurii, Goreshnik Evgeny, Pokhodylo Nazariy, Pavlyuk Oleksiy, Mys'kiv Marian
Acta Chim Slov. 2016;63(2):399-405. doi: 10.17344/acsi.2016.2486.
By means of the alternating current electrochemical technique two new π-compounds [Cu(2-apyt)NO3] (1) and Cu(2-apyt)(H2O) (2) have been obtained starting from the mixture of 1-allyl-5-(2-pyridyl)-2H-tetrazole (1-apyt), 2-allyl-5-(2-pyridyl)-2H-tetrazole (2-apyt) and corresponding copper(II) salts, and have been structurally studied. Selective complexation towards 2-allyl- isomer results in a formation of 2-apyt complexes. Copper(I) ion in both 1 and 2 complexes coordinates the allylic C=C bond, one pyridyl and one tetrazole N atoms. In both structures Cu+ center adopts distorted tetrahedral surrounding which additionally includes oxygen of NO3(-) in 1 and H2O moiety in 2. Structure 1 is built from [Cu(2-apyt)NO3]2 dimeric fragments. Contrary, participation of H2O in the metal coordination in 2 leads to the infinite {[Cu(2-apyt)(H2O)]+}n chain construction. To analyze interactions between the particles in 1 and 2 Hirshfeld surface analysis was performed.
通过交流电化学技术，从1-烯丙基-5-(2-吡啶基)-2H-四唑(1-apyt)、2-烯丙基-5-(2-吡啶基)-2H-四唑(2-apyt)与相应铜(II)盐的混合物出发，得到了两种新的π配合物[Cu(2-apyt)NO₃] (1)和Cu(2-apyt)(H₂O) (2)，并对其结构进行了研究。对2-烯丙基异构体的选择性络合导致了2-apyt配合物的形成。配合物1和2中的铜(I)离子与烯丙基C=C键、一个吡啶基和一个四唑氮原子配位。在这两种结构中，Cu⁺中心都采用扭曲的四面体配位环境，在结构1中还包括NO₃⁻的氧原子，在结构2中还包括H₂O部分。结构1由[Cu(2-apyt)NO₃]₂二聚体片段构成。相反，结构2中H₂O参与金属配位导致了无限的{[Cu(2-apyt)(H₂O)]⁺}ₙ链结构。为了分析结构1和2中粒子之间的相互作用，进行了 Hirshfeld表面分析。
