The crystal and molecular structure of bis(ortho-aminobenzoato)copper-(II), Cu(H2NC6H4COO)2

Copper 3-methylanthranilate [bis(2-amino-3-methylbenzoato)copper(II)]

“…This leads to a two-dimensional polymeric network parallel to the (010)plane. Similar networks resulting from bridging Cu atoms have been reported in bis(o-aminobenzoato)copper(II) (Lange & Haendler, 1975), copper(II) aminobutyrate dihydrate (Takenaka, Oshima, Yamada & Watanabe, 1973), and bis(6-aminohexanoato)copper(II) dihydrate (Sjrberg, Osterberg & Srderquist, 1973 The metal-to-ligand distances Cu-O(1), 1.954A, and Cu...N, 2.054 A, are comparable to the corresponding average values 1.96 (6) and 2.00(8)A reported for a large number of Cu n complexes with amino acids and peptides (Freeman, 1966;Karlin & Zubieta, 1983). There is indication of hydrogen bonding between the N atom and an adjacent 0(2).…”

“…This acid, and related acids with a carboxylate O atom and an N atom in ortho position, form highly stable and insoluble complexes with a variety of divalent and trivalent metal ions. The structures of Cu (Lange & Haendler, 1975), Y (Boudreau & Haendler, 1981), and Zn (Boudreau, Boudreau & Haendler, 1983) anthranilates have been determined, as has the structure of the Cu complex of quinaldinic acid, a metabolite of tryptophan (Haendler, 1986). Substitution on the aromatic ring may have an effect on the anti-inflammatory properties of the Cu complexes (Sorenson, 1978).…”

Interactions of a β-dipeptide with monovalent metal cations: crystal structures of (anthranoyl)anthranilic acid and its lithium, sodium and thallium salts☆

“…Structural investigations have been performed on the anthranilates of the alkali [35,36] and earth alkaline metals [37,38] as well as of several first row transition metals [39,40] and of thallium [41,42]. The consideration of the thallium(I) cation in this series served to illustrate its specific coordination characteristics (especially as opposed to the potassium cation which has almost the same size) which may be one of the main reasons for the toxicity of this group 13A metal [43].…”

Structure of a zinc 3-methylanthranilate complex: (2-amino-4-methylbenzoato)hydroxozinc(II)

“…The structure analysis of the title compound is a continuation of the investigation of a variety of highly stable and insoluble complexes of divalent and trivalent metal atoms and anthranilic acid (ortho-aminobenzoic acid) and related acids with a carboxylate O atom and an N atom in ortho position. The structures of copper (Lange & Haendler, 1975), yttrium (Boudreau & Haendler, 1981) and zinc anthranilate (Boudreau, Boudreau & Haendler, 1983), copper methylanthranilate (Boudreau & Haendler, 1986), and copper quinaldinate (Haendler, 1986) have been determined. Some of these have potential use as anti-inflammatory agents, hydrogenation catalysts, and components of films and adhesives.…”