Metal-organic anion receptors: Arranging urea hydrogen-bond donors to encapsulate sulfate ions

被引：312

作者：

Bondy, CR

Gale, PA

Loeb, SJ ^{[1
]}

机构：

[1] Univ Windsor, Dept Chem & Biochem, Windsor, ON N9B 3P4, Canada

[2] Univ Southampton, Sch Chem, Southampton SO17 1BJ, Hants, England

来源：

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 2004年 / 126卷 / 16期

关键词：

D O I：

10.1021/ja039712q

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A new class of synthetic receptors for anions can be prepared by arranging urea hydrogen-bond donor groups on a simple metal-organic scaffold. The complex cation [PtL4]2+ (L = 8-(n-butylurea)iso-quinoline) can adopt four conformations reminiscent of calix[4]arene-based receptors; "cone", "partial cone", "1,2-alternate", or "1,3-alternate". 1H NMR solution data and solid-state X-ray structures show that a "1,2-alternate" conformation is used to bind spherical halide ions while a "cone" conformation is involved in strong binding with the tetrahedral oxy-anions such as the sulfate ion; even in a strongly competitive solvent such as DMSO. Copyright © 2004 American Chemical Society.

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页码：5030 / 5031

页数：2

相关论文

共 16 条

[1] Exploiting supramolecular chemistry in metal recovery: novel zwitterionic extractants for nickel(II) salts [J].

Akkus, N ;

Campbell, JC ;

Davidson, J ;

Henderson, DK ;

Miller, HA ;

Parkin, A ;

Parsons, S ;

Plieger, PG ;

Swart, RM ;

Tasker, PA ;

West, LC .

DALTON TRANSACTIONS, 2003, (10) :1932-1940

[2]

Beer PD, 2001, ANGEW CHEM INT EDIT, V40, P486, DOI 10.1002/1521-3773(20010202)40:3<486::AID-ANIE486>3.3.CO

[3]

2-G

[4] Platinum(II) nicotinamide complexes as receptors for oxo-anions [J].

Bondy, CR ;

Gale, PA ;

Loeb, SJ .

CHEMICAL COMMUNICATIONS, 2001, (08) :729-730

[5] Special issue: 35 years of synthetic anion receptor chemistry 1968-2003 - Preface [J].

Gale, PA .

COORDINATION CHEMISTRY REVIEWS, 2003, 240 (1-2) :1-1

[6]

GALE PA, IN PRESS ENCY SUPRAM

[7] Multiple hydrogen bond stabilization of a sandwich complex of sulfate between two macrocyclic tetraamides [J].

Hossain, MA ;

Llinares, JM ;

Powell, D ;

Bowman-James, K .

INORGANIC CHEMISTRY, 2001, 40 (13) :2936-2937

[8] EQNMR - A COMPUTER-PROGRAM FOR THE CALCULATION OF STABILITY-CONSTANTS FROM NUCLEAR-MAGNETIC-RESONANCE CHEMICAL-SHIFT DATA [J].

HYNES, MJ .

JOURNAL OF THE CHEMICAL SOCIETY-DALTON TRANSACTIONS, 1993, (02) :311-312

[9] Conformation and anion binding properties of cyclic hexapeptides containing L-4-hydroxyproline and 6-aminopicolinic acid subunits [J].

Kubik, S ;

Goddard, R .

PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 2002, 99 (08) :5127-5132

[10] A molecular oyster: A neutral anion receptor containing two cyclopeptide subunits with a remarkable sulfate affinity in aqueous solution [J].

Kubik, S ;

Kirchner, R ;

Nolting, D ;

Seidel, J .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2002, 124 (43) :12752-12760