Crystal Growth and Design p. 92 - 107 (2016)
Update date:2022-08-17
Topics:
Rana, Love Karan
Sharma, Sanyog
Hundal, Geeta
Two new ligands N,N,N′,N′-tetraisopropyl/tetraisobutyl-3,4-pyridinedicarboxamide L1-L2 and six of their Hg(II)X2 complexes (where X = Cl-, Br-, and I-) have been synthesized and characterized. Single crystal X-ray structures of three complexes of L1 (1-3) with HgCl2/Br2/I2 and two complexes of L2 (4-5) with HgCl2/Br2 show that these are two-dimensional (2D) coordination polymers, with three different (one new) topologies and five coordinated Hg(II) ions, in square pyramidal coordination. Complex 6, of L2 with HgI2, is a dimer with a four coordinated tetrahedral Hg(II) ion. The ligands behave as two- or three-connecting linkers for forming coordination polymers (CPs) but only one-connector in the dimer. Various types of hydrogen bonding and other noncovalent interactions have been calculated, analyzed, and discussed for all the complexes and the ligand L1. Although the large size and soft character of iodide coupled with the steric effects of large isobutyl groups are mainly responsible for a change in the primary structure of 6, a significant role of the semilocalized LP···π and C-H···O noncovalent interactions into this has also been found. The latter transform this dimer into a stable 2D hydrogen-bonded network instead of a coordination polymer. The unique halide bridged 2D structure of 1 forms one-dimensional zig-zag chains of metal ions owing to the mercurophilic interactions. Weaker interactions of the same kind further extend along the basic skeleton of 2D CP and are facilitated by LP···π, strong C-H···Cl and C-H···N(py) interactions.
View MoreRizhao Lanxing Chemical Indusrial Co.,Ltd
Contact:86-633-2616708
Address:NO.15 West road Shenglan, Lanshan district, Rizhao City
website:http://www.chinaskyrun.com
Contact:0086-576-84610586
Address:Chemical Development Zone
Hefei TNJ chemical industry co.,ltd
website:https://www.tnjchem.com
Contact:+86-551-65418695
Address:B911 Xincheng Business Center, Qianshan Road, Hefei Anhui China
Anhui Dexinjia Biopharm Co., Ltd
Contact:+86-531-82375818
Address:9 Hexie Road, kaifaqu, Taihe
Wuxi Forest Biological Co.,Ltd
Contact:+86-510-81602300
Address:Room 317,Building D, No.159 middle Chengjiang Road,Jiangyin Wuxi city.
Doi:10.1080/15257770.2016.1257808
(2017)Doi:10.1016/S0040-4039(01)90432-0
(1981)Doi:10.1021/jacs.9b07854
(2019)Doi:10.1039/c7dt02067h
(2017)Doi:10.5012/bkcs.2011.32.6.2091
(2011)Doi:10.1246/bcsj.57.2234
(1984)