1991
DOI: 10.1016/s0020-1693(00)80191-7
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Synthesis and structure of oxotechnetium(V) complexes of N,N′-ethylenebis(acetylacetone thioimine) and N,N′-ethylenebis(benzylacetone thioimine)

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Cited by 19 publications
(16 citation statements)
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“…As in the other few complexes containing the mer -{Tc­(CO) 3 } + motif, , the bonds between Tc and the two carbonyl ligands in the trans -position to each other are weakened compared to the third CO ligand, which has another ligand (here water) in the trans -position. The Tc–O­(water) bond lengths are similar to those in other Tc complexes containing aqua ligands. One of the few structural differences between the three solid-state structures are the C1–Tc–O10 and C3–Tc–O10 angles. They are significantly smaller (83.9(1)°, 86.9(1)) in the BArF 24 – salt than in the two hydrogen-bridged dimers (90.34(7)° to 93.20(8)°), in which the two carbonyl ligands are slightly bent away from the H-bonded anions.…”
Section: Results and Discussionmentioning
confidence: 58%
See 1 more Smart Citation
“…As in the other few complexes containing the mer -{Tc­(CO) 3 } + motif, , the bonds between Tc and the two carbonyl ligands in the trans -position to each other are weakened compared to the third CO ligand, which has another ligand (here water) in the trans -position. The Tc–O­(water) bond lengths are similar to those in other Tc complexes containing aqua ligands. One of the few structural differences between the three solid-state structures are the C1–Tc–O10 and C3–Tc–O10 angles. They are significantly smaller (83.9(1)°, 86.9(1)) in the BArF 24 – salt than in the two hydrogen-bridged dimers (90.34(7)° to 93.20(8)°), in which the two carbonyl ligands are slightly bent away from the H-bonded anions.…”
Section: Results and Discussionmentioning
confidence: 58%
“…Despite the importance of the technetium chemistry in aqueous media, there are surprisingly few structural reports about Tc complexes with aqua ligands. Of course, there are a number of oxido and nitrido complexes, where water sometimes appears as a strongly labilized ligand trans to O 2– and N 3– ; but this is the most labile coordination position in such molecules, and the replacement of such aqua ligands does not represent a synthetic approach to stable ligand exchange products. In addition to some instable chlorido complexes of technetium­(V) and -(IV), there exist to the best of our knowledge hitherto only three compounds, in which aqua ligands have been proven by X-ray structural analysis (Chart ).…”
Section: Introductionmentioning
confidence: 99%
“…Attempts to synthesize these complexes using Bu 4 NTcOCl 4 as precursor did not result in the desired products, giving instead a black powder. IR spectra of the isolated solids demonstrated the absence of the TcO 3+ core (890−1020 cm -1 ) …”
Section: Resultsmentioning
confidence: 99%
“…; 1) k 1) [ σμός Tc-N σχηματίζεται από την συναρμογή και ταυτόχρονη αποπρωτονίωση ενός αμινικού αζώτου, είτε από την συναρμογή ενός ιμινικού αζώτου [174].…”
Section: επίλυση και βελτίωση της μοριακής δομήςunclassified
“…Το φαινόμενο αυτό, όπως έχει αναφερθεί σε προηγούμενο κεφάλαιο (σελ. 117), λαμβάνει χώρα και στα εξαϋποκατεστημένα μονοόξο-τεχνητικά σύμπλοκα σε μικρότερο όμως βαθμό και είναι υπεύθυνο για την παραμόρφωση της οκταεδρικής δομής των συμπλοκών αυτών [109,174).…”
Section: επίλυση καν βελτίωση της μοριακής δομήςunclassified