A1 Journal article (refereed)
2,2′:6′,2″-Terpyridine Trimethylplatinum(IV) Iodide Complexes as Bifunctional Halogen Bond Acceptors (2016)

Ghosh, B. N., Lahtinen, M., Kalenius, E., Mal, P., & Rissanen, K. (2016). 2,2′:6′,2″-Terpyridine Trimethylplatinum(IV) Iodide Complexes as Bifunctional Halogen Bond Acceptors. Crystal Growth and Design, 16(5), 2527-2534. https://doi.org/10.1021/acs.cgd.5b01552

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Publication details

All authors or editors: Ghosh, Biswa Nath; Lahtinen, Manu; Kalenius, Elina; Mal, Prasenjit; Rissanen, Kari

Journal or series: Crystal Growth and Design

ISSN: 1528-7483

eISSN: 1528-7505

Publication year: 2016

Volume: 16

Issue number: 5

Pages range: 2527–2534

Publisher: American Chemical Society

Publication country: United States

Publication language: English

DOI: https://doi.org/10.1021/acs.cgd.5b01552

Publication open access: Not open

Publication channel open access: 

Abstract

Three new organometallic trimethylplatinum(IV) iodide complexes of 2,2′:6′,2-terpyridines have been synthesized and characterized by 1H NMR spectroscopy, mass spectrometry, elemental analysis, and single crystal X-ray diffraction analysis. The X-ray crystal structures of PtMe3I(L) complexes 1-3 {L for 1 = 4′-chloro-2,2′:6′,2-terpyridine, 2 = 4′-(4-cyanophenyl)-2,2′:6′,2-terpyridine, and 3 = 4′-(4-tolyl)-2,2′:6′,2-terpyridine} reveal distorted octahedral coordination geometry of the platinum(IV) metal centers with bidentate coordination of the terpyridine ligands. Complexation of 1-3 with iodopentafluorobenzene (IPFB) afforded single-crystal structures of halogen bond (XB) complexes 1a-3a, in which the Pt-complexes act as bifunctional XB bond acceptor wherein the pendant pyridine nitrogen atom and the platinum bound iodine atom act as XB acceptors toward the polarized iodine of IPFB. In addition, complexation of 1 with 1,4-diiodotetrafluobenzene (DITFB) afforded single-crystal structure of dimeric XB complex (1b), in which the halogen bonding occurs via the pyridine nitrogen atoms of two 1 and DITFB, whereas the iodine on each Pt-complex forms weak hydrogen bond with solvent molecule (chloroform).

Free keywords: halogen bonds; halogen bond acceptors; transition metal complexes

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Ministry reporting: Yes

Reporting Year: 2016

JUFO rating: 2