Tricarbonyltechnetium(i) and tricarbonylrhenium(i) complexes of amino acids: Crystal and molecular structure of a novel cyclic dimeric Re(CO) 3-amino acid complex comprised of the OON donor atom set of the tridentate ligand

Dipak Kumar Nayak, Kamal Krishna Halder, Rinku Baishya, Tuhinadri Sen, Partha Mitra, Mita Chatterjee Debnath

Research output: Contribution to journalArticlepeer-review

7 Scopus citations

Abstract

Radiolabeled complexes of monoamino polycarboxylic, polyamino monocarboxylic and thiol containing amino acid ligands were prepared from a fac-[99mTc(CO)3(H2O)3]+ precursor.The overall radiochemical yield was 94-98%. The complexes exhibited substantial in vitro and in vivo stability. The corresponding Re(i) complexes of the ligands DAPA, Asp and CysH were prepared and characterized by means of IR, NMR, and MS spectroscopic studies, as well as X-ray crystallography (for those containing d,l-DAPA and d,l-Asp). The rhenium complexes have been structurally correlated with the technetium complexes by means of HPLC studies. The reaction of Re(CO)5Cl with d,l-Asp in presence of triethylamine led to the formation of a new class of cyclic dimeric complexes formed by the OON donor atom set of the tridentate ligands. The amino carboxylate ligand system formed well defined complexes with a fac-[M(CO)3(H2O) 3]+ core and shows good promise in 99mTc(CO) 3 tracer development.

Original languageEnglish
Pages (from-to)13565-13575
Number of pages11
JournalDalton Transactions
Volume42
Issue number37
DOIs
StatePublished - 7 Oct 2013
Externally publishedYes

ASJC Scopus subject areas

  • Inorganic Chemistry

Fingerprint

Dive into the research topics of 'Tricarbonyltechnetium(i) and tricarbonylrhenium(i) complexes of amino acids: Crystal and molecular structure of a novel cyclic dimeric Re(CO) 3-amino acid complex comprised of the OON donor atom set of the tridentate ligand'. Together they form a unique fingerprint.

Cite this