(4R)-Thiazolidine-4-carboxylic acid: ligand specificity and the synthesis and X-ray structure of a cobalt(III) complex

1980 ◽  
Vol 33 (6) ◽  
pp. 1213 ◽  
Author(s):  
GJ Gainsford ◽  
WG Jackson ◽  
AM Sargeson ◽  
AD Watson
Keyword(s):  
Amino Acid ◽  
Carboxylic Acid ◽  
Carboxylate Ligand ◽  
Ligand Specificity ◽  
X Ray ◽  
Acid Ligand ◽  
Carboxylic Acid Ligand

The N,O mode of bonding of the thiazolidine-4-carboxylate ligand and the structure of the Δ-bis-(ethane-1,2-diamine)[(3R,4R)-thiazolidine-4- carboxylato-N,O]cobalt(2+) ion have been determined. The stereospecificity induced by the chiral amino acid between the A and A forms is discussed in relation to analogous proline chemistry.

scholarly journals Synthesis and crystal structure of Cu(II) and Co(II) complexes with 1,3-dimethyl-pyrazole-5-carboxylic acid ligand

2015 ◽  
Vol 80 (7) ◽  
pp. 867-875 ◽  
Author(s):  
Zeljko Jacimovic ◽  
Milica Kosovic ◽  
Sladjana Novakovic ◽  
Gerald Giester ◽  
Ana Radovic
Keyword(s):  
Crystal Structure ◽  
Carboxylic Acid ◽  
Single Crystal ◽  
X Ray Diffraction ◽  
Synthesis And Crystal Structure ◽  
X Ray ◽  
Acid Ligand ◽  
Square Planar ◽  
Monodentate Coordination ◽  
Carboxylic Acid Ligand

In the reaction of 1,3-dimethyl-pyrazole-5-carboxylic acid (HL) with M(OAc)2?4H2O, (M = Cu, Co) two novel complexes have been prepared, square-planar [CuL2(H2O)2] and octahedral [CoL2(MeOH)4]. The crystal structures have been determined by single-crystal X-ray diffraction. In both complexes the deprotonated acid displays monodentate coordination to the metal ions. According to the results of CSD survey this is the first structural report on the metal complexes with N1-substituted pyrazole-5-carboxylic ligand.

Isolation from atelia herbert-smithii pittier (sophoreae, leguminosae) and x-ray structure of cis-1-amino-3-hydroxymethyl-cyclobutane-1-carboxylic acid, an achiral non-protein amino acid

Tetrahedron ◽  
1987 ◽  
Vol 43 (8) ◽  
pp. 1857-1861 ◽  
Author(s):  
Geoffrey N. Austin ◽  
Peter D. Baird ◽  
Hak-Fun Chow ◽  
L.E. Fellows ◽  
G.W.J. Fleet ◽  
...  
Keyword(s):  
Amino Acid ◽  
Carboxylic Acid ◽  
Protein Amino Acid ◽  
X Ray

scholarly journals Thermal, spectroscopic, X-ray and theoretical studies of metal complexes (sodium, manganese, copper, nickel, cobalt and zinc) with pyrimidine-5-carboxylic and pyrimidine-2-carboxylic acids

2019 ◽  
Vol 138 (4) ◽  
pp. 2813-2837 ◽  
Author(s):  
G. Świderski ◽  
R. Świsłocka ◽  
R. Łyszczek ◽  
S. Wojtulewski ◽  
M. Samsonowicz ◽  
...  
Keyword(s):  
Carboxylic Acid ◽  
Nitrogen Atom ◽  
Metal Complexes ◽  
General Formula ◽  
Pyrimidine Ring ◽  
Carboxylate Ligand ◽  
Metal Centers ◽  
X Ray ◽  
Carboxylate Oxygen ◽  
3D Metal Complexes

Abstract The new 3d metal complexes of pyrimidine-2-carboxylic (2PCA) and pyrimidine-5-carboxylic (5PCA) acids were synthesized and characterized using thermal analysis (TG–DSC, TG–FTIR), X-ray, spectroscopic (IR, Raman) methods and theoretical (DFT) studies. In the complexes of pyrimidine-2-carboxylic acid of the general formula M(2PCA)2·xH2O (where 2PCA-pyrimidine-2-carboxylate; M = Mn(II), Co(II), Ni(II), Cu(II) and Zn; x = 0 for Mn and Cu; x = 2 for Co, Ni and Zn) coordination of metal ions occurs through nitrogen atom from pyrimidine ring and carboxylate oxygen atom. The complexes of pyrimidine-5-carboxylic acid of the general formula M(5PCA)2·xH2O (where 5PCA—pyrimidine-5-carboxylate; M = Mn(II), Co(II), Ni(II), Cu(II) and Zn; x = 6 for Cu and 4 for remaining complexes) were obtained as monomeric isostructural compounds. Coordination of metal centers occurs through two nitrogen atom from different pyrimidine-5-carboxylate ligand and four oxygen atoms from water molecules. The IR and Raman spectra of free acids as well as obtained metal(II) complexes were described in detail. Aromaticity (HOMA, EN, GEO and I6) of complexes was determined and discussed. The investigated compounds decompose in air in two main stages connected with dehydration and decomposition/burning of anhydrous compounds to the suitable metal oxides. Thermal decomposition in nitrogen leads to the evolution of water, carbon oxides, ammonia and pyrimidine molecules.

Synthesis, structure and photocatalytic properties of coordination polymers based on pyrazole carboxylic acid ligands

CrystEngComm ◽  
2020 ◽  
Vol 22 (41) ◽  
pp. 6847-6855
Author(s):  
Chen-Lan Lin ◽  
Yan-Fei Chen ◽  
Li-Juan Qiu ◽  
Binglong Zhu ◽  
Xin Wang ◽  
...  
Keyword(s):  
Carboxylic Acid ◽  
Coordination Polymers ◽  
Photocatalytic Properties ◽  
Acid Ligand ◽  
Photocatalytic Activities ◽  
Carboxylic Acid Ligand

The photocatalytic activities of two novel different 2-D coordination polymers constructed from 5-hydroxy-1H-pyrazole-3-carboxylic acid ligand have been explored.

CrOx Anchored on the Black-TiO2 Surface via Organic Carboxylic Acid Ligand and Its Catalysis in Oxidation of NO

2020 ◽  
Author(s):  
Fanyu Meng ◽  
Mingjia Zhang ◽  
Fayang Zhou ◽  
Haocheng Zou ◽  
Boming Zhu ◽  
...  
Keyword(s):  
Carboxylic Acid ◽  
Tio2 Surface ◽  
Acid Ligand ◽  
Black Tio2 ◽  
Oxidation Of No ◽  
Carboxylic Acid Ligand

The effects of temperature and carboxylic acid ligand on the growth of nanocrystalline CdSe in a hot paraffin matrix

2006 ◽  
Vol 273 (1-3) ◽  
pp. 10-15 ◽  
Author(s):  
Georgi G. Yordanov ◽  
Gospodinka D. Gicheva ◽  
Bocho H. Bochev ◽  
Ceco D. Dushkin ◽  
Eiki Adachi
Keyword(s):  
Carboxylic Acid ◽  
Acid Ligand ◽  
Effects Of Temperature ◽  
Carboxylic Acid Ligand

Two metal–organic frameworks based on a flexible benzimidazole carboxylic acid ligand: selective gas sorption and luminescence

2017 ◽  
Vol 46 (43) ◽  
pp. 15118-15123 ◽  
Author(s):  
Fang Zhang ◽  
Lei Hou ◽  
Wenyan Zhang ◽  
Yangtian Yan ◽  
Yunlong Wu ◽  
...  
Keyword(s):  
Carboxylic Acid ◽  
Metal Organic Frameworks ◽  
Gas Sorption ◽  
Adsorption Selectivity ◽  
Flexible Ligand ◽  
Acid Ligand ◽  
Strong Luminescence ◽  
Metal Organic ◽  
Carboxylic Acid Ligand

Two new 3D frameworks with a novel (3,4,7)-connected trinodal net and (3,6)-connected binodal net were obtained by using a flexible ligand, showing significant adsorption selectivity for CO2 over CH4 as well as strong luminescence.

A novel 2D infinite M3L2 cage-based Cd(ii) microporous coordination polymer with a tripodal carboxylic acid ligand and solvent-dependent luminescence properties

2016 ◽  
Vol 40 (1) ◽  
pp. 97-100 ◽  
Author(s):  
Jian Su ◽  
Liudi Yao ◽  
Jun Zhang ◽  
Shizhen Yuan ◽  
Fazhi Xie ◽  
...  
Keyword(s):  
Carboxylic Acid ◽  
Coordination Polymer ◽  
Luminescence Properties ◽  
Acid Ligand ◽  
Surface Enhanced ◽  
Enhanced Luminescence ◽  
Carboxylic Acid Ligand

A novel M3L2 cage-based microporous coordination polymer has an obvious, surface-enhanced luminescence in the solvents CH2Cl2 and CHCl3.

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