Interaction between diethylenetrithiodiacetic acid (H2T) derivatives and trivalent lanthanide ions
Creators
- 1. Ceara Univ., Fortaleza (Brazil). Dept. de Quimica Organica e Inorganica
Description
Thiopolycarboxylic acids are a class of ligands which contain, besides carboxi-groups, sulfur atoms showing a distinct affinity towards certain solft metals. Stability constant measurements were made for metaldithiocarboxylic acid systems and performed by several authors. Some soLid complexes with 1:1 and 1:2 metal-ligand ratios were isolated and their structures determined by spectroscopic and magnetic methods. Solid complexes between some lanthanides and ethylenedithiodiacetic acid were prepared and characterized by Holanda and Giesbrecht. Investigations of the crystal structure of Zn (II), Cd (II), and Nd (III) complexes with thiodiacetic acid showed, besides coordination to carboxylic groups, the ligand being linked to the metal through the sulfur atom. (Author)
Abstract (Portuguese)
Acidos tiopolicarboxilicos formam uma classe de ligantes que contem, alem de grupos carboxi, atomos de enxofre que lhes confere uma afinidade especial em relacao a metais leves. Foram feitas medidas de constante de estabilidade para sistemas metal-acido ditiocarboxilico, por diversos autores. Foram, ainda, isolados alguns complexos solidos com razoes metal/ligante 1:1 e 1:2; suas estruturas foram, determinadas por metodos espectroscopicos e magneticos. Holanda e Giesbrecht prepararam e caracterizaram complexos solidos entre alguns lantanideos e o acido etilenoditiodiacetico. Investigacoes da estrutura cristalina dos complexos de Zn(II), Cd(II) e Nd(III) com acido tiodiacetico mostraram que, alem da coordenacao aos grupos carboxilicos, o ligante se junta ao metal atraves do atomo de enxofre. (C.L.B.)Files
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Additional details
Additional titles
- Subtitle (English)
- Aspects of the coordination and bonding site
- Original title (no language)
- Anais do 8. Simposio Anual da ACIESP. v. 1.
Publishing Information
- Imprint Title
- Annals of the 8. Annual Symposium of the ACIESP. v. 1
- Imprint Pagination
- 238 p.
- Journal Page Range
- p. 175-184.
- Report number
- ACIESP--44-1
Conference
- Title
- 8. Annual Symposium of the ACIESP.
- Dates
- 9-14 Oct 1983.
- Place
- Sao Paulo, SP (Brazil).
INIS
- Country of Publication
- Brazil
- Country of Input or Organization
- Brazil
- INIS RN
- 16001506
- Subject category
- S37: INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY;
- Resource subtype / Literary indicator
- Conference
- Descriptors DEI
- BONDING; COORDINATION VALENCES; DICARBOXYLIC ACIDS; EMISSION SPECTRA; FLUORESCENCE SPECTROSCOPY; INFRARED SPECTRA; MELTING POINTS; ORGANIC SULFUR COMPOUNDS; RARE EARTH COMPLEXES; STABILITY
- Descriptors DEC
- CARBOXYLIC ACIDS; COMPLEXES; EMISSION SPECTROSCOPY; FABRICATION; JOINING; ORGANIC ACIDS; ORGANIC COMPOUNDS; PHYSICAL PROPERTIES; SPECTRA; SPECTROSCOPY; THERMODYNAMIC PROPERTIES; TRANSITION TEMPERATURE; VALENCE
Optional Information
- Notes
- Imprint:Anais do 8. Simposio Anual da ACIESP. v. 1.;Quimica das Terras Raras.