69527-02-2Relevant articles and documents
Two novel flexible multidentate ligands for crystal engineering: Syntheses, structures, and properties of CuII, MnII complexes with N-[(3-carboxyphenyl)-sulfonyl]glycine and N,N′-(1,3-phenylenedisulfonyl) bis(glycine)
Ma, Lu-Fang,Wang, Yao-Yu,Wang, Li-Ya,Liu, Jian-Qiang,Wu, Ya-Pan,Wang, Jian-Ge,Shi, Qi-Zhen,Peng, Shie-Ming
, p. 693 - 703 (2008)
One novel N-[(3-carboxyphenyl)sulfonyl]glycine (H3L1) ligand (1) was prepared in high yield, and its structure was determined by single-crystal X-ray diffraction. Reaction of H3L1 with Mn(ClO4)2·6H2O at different pH values gave two new dinuclear complexes: [Mn2(HL1) 2(phen)4]·16H2O (2) and [Mn 2L1(phen)4(H2O)]ClO 4·3H2O (3) (phen = 1,10-phenanthroline). Additionally, two copper(II) complexes, [K2Cu(L2) 2-(H2O)2]n (4) and [CuL 2(H2O)]2·2H2O (5), involving another novel ligand, N,N′-(1,3-phenylenedisulfonyl)bis(glycine) (H 2L2), were prepared by a one-pot reaction of 1,3-phenylenebis(sulfonyl chloride), glycine, and KOH or triethylamine in the presence of CuII ions. A self-assembled (H2O)30 cluster containing a puckered (H2O)12 ring core was found in 2, which presents a new mode of association of water molecules not predicted theoretically or previously observed experimentally. Furthermore, 2 forms a 2-D supramolecular structure through hydrogen bonding and unique π-π stacking interactions. In 3, there also exist discrete trimeric water clusters. The identity of the base determines the specific structural characteristics of 4 and 5. When potassium hydroxide was used for the synthesis of 4, it led to a 3-D copper(II)-potassium(I) coordination polymer; when triethylamine was used, paddle-wheel dinuclear units of copper(II) carboxylate were produced. Magnetic measurements show that there are weak antiferromagnetic interactions in 2-4. In 5 the χMT vs. T curve shows a minimum at 110 K and a climb from 110 K to 5 K, then a long-range antiferromagnetic ordering occurs, as revealed by a decrease in χMT with T. Wiley-VCH Verlag GmbH & Co. KGaA, 2008.
