Jump to main content
Jump to site search
Access to RSC content Close the message box

Continue to access RSC content when you are not at your institution. Follow our step-by-step guide.



Co(II) coordination polymers constructed from a bent chiral linker: influencing framework topology using co-ligands

Abstract

A semi-rigid chiral ligand (1R, 2R)-4,4ˊ-(trans-cyclohexane-1,2-diyl)bis(azanediyl)bis(carbonyl) dibenzoic acid (H2cbba) was combined with various Co(II) salts and dipyridyl co-ligands to obtain four 2D homochiral coordination polymers of composition [Co(cbba)(dipyridyl)]∙solvate (dipyridyl = 4,4'-bipyridyl (bipy), bis(4-pyridyl)ethylene (bpe), 1,4-bis(4-pyridyl)benzene (1,4-bpb), 2,5-bis(4-pyridyl)thiazolo [5,4 d]thiazole (2,5-bptztz)) (1-4). The topology of the frameworks is mediated by the length of the co-ligands, with short dipyridyl co-ligands (4,4ˊ-bipy and bpe) resulting in the formation of (413.62) networks (1-2), while long co-ligands (1,4-bpb and 2,5-bptztz) led instead to (44.62) (sql) networks that undergo 2D  2D parallel interpenetration to form a rare example of a homochiral polyrotaxane (3-4). The length of the dipyridyl co-ligand was also found to have an effect on the conformation of the flexible cbba2− ligands and the crystal packing of the networks.

Back to tab navigation

Supplementary files

Article information


Submitted
11 Aug 2020
Accepted
14 Sep 2020
First published
16 Sep 2020

CrystEngComm, 2020, Accepted Manuscript
Article type
Paper

Co(II) coordination polymers constructed from a bent chiral linker: influencing framework topology using co-ligands

H. M. Tay and C. Hua, CrystEngComm, 2020, Accepted Manuscript , DOI: 10.1039/D0CE01172J

Social activity

Search articles by author

Spotlight

Advertisements