Welcome to LookChem.com Sign In|Join Free

Article Doi

A convenient high yield synthesis of 2,2′:6′,2″:6″,2?:6?,2″″: 6″″,2″?-sexipyridine and helical transition-metal complexes of substituted sexipyridines

DOI: 10.1039/DT9960004207

Source and publish data:

Journal of the Chemical Society, Dalton Transactions p. 4207 - 4216 (1996)

Update date:2022-08-03

Topics:

Authors:

Chotalia, RohitChotalia, Rohit

Constable, Edwin C.Constable, Edwin C.

Neuburger, MarkusNeuburger, Markus

Smith, Diane R.Smith, Diane R.

Zehnder, MargaretaZehnder, Margareta

Read Full Text PDF DownLoad Join now for total 90,000,000 free articles

Article abstract of DOI:10.1039/DT9960004207

The compound 2,2′:6′,2″:6″,2?:6?,2″″: 6″″,2″?-sexipyridine (spy) has been synthesised in high yield by the coupling of 6-bromo-2,2′:6′,2″-terpyridine with a nickel(0) reagent, followed by demetallation of the resultant double-helical [Ni2(spy)2]4+ complex with KCN. In order to probe the effects of substitution of spy upon helication processes, the substituted compounds 4′,4″″-bis(methylsulfanyl)-2,2′:6′,2″: 6″,2?:6?,2″″:6″″,2″?- sexipyridine (msspy), 4′,4″″-diphenyl-2,2′:6′,2″:6″, 2?:6?,2″″:6″″,2″?- sexipyridine (pspy) and 4′,4″″-bis(4-tert-butylphenyl)-2,2′:6′,2″: 6″,2?:6?,2″″:6″″,2″?- sexipyridine (tbspy) were also prepared and studied. The reaction of each of these compounds with transition-metal ions capable of adopting an octahedral geometry results in the self-assembly of dinuclear double-helical complexes of the type [M2L2]4+ [M = iron(II), cobalt(II), nickel(II), copper(II), zinc(II), cadmium(II) or mercury(II); L = spy, msspy, pspy or tbspy]; the double-helical topology of the zinc complex of pspy was confirmed by a crystal-structure analysis of the salt [Zn2(pspy)2]-[PF6] 4-2MeCN·2H2O [space group P42212, a = 15.518(2), c = 18.443(1) A, R = 0.0638, R′ = 0.0735].

View More

Products guided by the article

Product name:4',4''''-diphenyl-2,2':6',2'':6'',2''':6''',2'''':6'''',2'''''-sexipyridine

Cas No:185898-05-9

185898-05-9

R&D Labs maybe for 185898-05-9

Relevant to this article

Hot Product