Transition Metal Complexes of p-Sulfonatocalix[5]arene

Carl P. Johnson; Jerry L. Atwood; Jonathan W. Steed; Cary B. Bauer; Robin D. Rogers

doi:10.1021/ic950862e

Transition Metal Complexes of p-Sulfonatocalix[5]arene

Inorg Chem. 1996 Apr 24;35(9):2602-2610. doi: 10.1021/ic950862e.

Authors

Carl P. Johnson¹, Jerry L. Atwood, Jonathan W. Steed, Cary B. Bauer, Robin D. Rogers

Affiliation

¹ Department of Chemistry, Northern Illinois University, DeKalb, Illinois 60115.

PMID: 11666475
DOI: 10.1021/ic950862e

Abstract

The X-ray crystal structure of the p-sulfonatocalix[5]arene(5)(-) anion (1b) in the form of the dimeric hydrate Na(10)[p-sulfonatocalix[5]arene](2).33.5H(2)O (2) is reported. The reactions of 1b with a number of transition metal salts to form transition metal bridged bis(calixarene) inclusion complexes have also been investigated. The X-ray crystal structure of the "Co(H(2)O)(4)(2+)" bridged species Na(8)[Co(H(2)O)(4)(p-sulfonatocalix[5]arene)(2)].2CH(3)C(O)N(CH(3))(2).37H(2)O (3) which incorporates a "supercavity" large enough to encompass 2 N,N-dimethylacetamide (dma) guest molecules as well as ca. 15 water molecules and Na(+) ions is reported. Crystal data are as follows: for 2, monoclinic space group P2(1)/c, Z = 4, a = 22.0644(4), b = 19.1180(3), c = 27.7834(4) Å, beta = 91.780(1), V = 11714.1(5) Å(3); complex 3, orthorhombic space group Pnma, Z = 4, a = 22.2271(5), b = 30.1693(6), c = 18.8503(4) Å, V = 12640.6(5) Å(3).