FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W2018550924> ?p ?o ?g. }

• W2018550924 endingPage "3106" @default.
• W2018550924 startingPage "3099" @default.
• W2018550924 abstract "Electronic and ESR spectroscopic studies in aqueous solution and single-crystal X-ray diffraction analyses of copper(II) complexes of the following oxatriaza macrocycles have been undertaken: 1-oxa-4,7,10-triazacyclododecane (L1), 4,7,10-trimethyl-1-oxa-4,7,10-triazacyclododecane (L2), 1-oxa-4,7,11-triazacyclotridecane (L3), 1-oxa-4,8,12-triazacyclotetradecane (L4) and 4,8,12-trimethyl-1-oxa-4,8,12-triazacyclotetradecane (L5). The complexes for solution studies were prepared in an excess of NaClO4, but the bulky counter ion PF6– was added to induce crystallization. The crystal structures of [CuL1(Br)][PF6], [CuL2(Cl)][PF6], [CuL4H2O)][PF6]2·H2O and [CuL5(Cl)][PF6] were determined. The co-ordination geometry around the copper atom in the four complexes can be described as a distorted square pyramid, but whereas the basal planes comprise the three nitrogens and the oxygen from the macrocycle in the last two complexes, in the first two complexes they comprise the three macrocyclic nitrogens and a halogen atom, bromine and chlorine respectively. The apical co-ordination in the latter is by the macrocyclic oxygen, but in [CuL4(H2O)][PF6]2·H2O it is the oxygen of a water molecule and in [CuL5(Cl)][PF6] it is a chlorine atom. The main conclusions on the structures of these complexes from spectroscopic measurements and X-ray studies are in good agreement. However, for the complex of the 13-membered macrocycle (L3) published X-ray results point to a structure similar to those found in this work for the 14-membered macrocyclic complexes, while the spectroscopic studies now reported indicate a structure with a pronounced tetrahedral distortion similar to that observed in the 12-membered macrocyclic complexes. The replacement of hydrogen atoms by methyl groups on the nitrogen atoms does not affect the overall final geometry of these complexes. For this series of macrocyclic complexes, the smaller the ligand the more pronounced is the folding necessary to accommodate the metal at its centre. The structure of a complex of a 12-membered macrocycle having four donor atoms one of which approaches the metal from the apical position is reported for the first time." @default.
• W2018550924 created "2016-06-24" @default.
• W2018550924 creator A5006870660 @default.
• W2018550924 creator A5036234113 @default.
• W2018550924 creator A5043637691 @default.
• W2018550924 creator A5052367205 @default.
• W2018550924 creator A5062589649 @default.
• W2018550924 creator A5079736054 @default.
• W2018550924 creator A5081062633 @default.
• W2018550924 creator A5084226540 @default.
• W2018550924 creator A5087293411 @default.
• W2018550924 date "1994-01-01" @default.
• W2018550924 modified "2023-09-27" @default.
• W2018550924 title "Electron spin resonance studies and crystal structures of copper(<scp>II</scp>) complexes of some 12-, 13- and 14-membered oxatriaza macrocycles" @default.
• W2018550924 cites W1975098194 @default.
• W2018550924 cites W1975748550 @default.
• W2018550924 cites W1979348869 @default.
• W2018550924 cites W1982414593 @default.
• W2018550924 cites W1986375066 @default.
• W2018550924 cites W1996788540 @default.
• W2018550924 cites W2014465991 @default.
• W2018550924 cites W2014692878 @default.
• W2018550924 cites W2016278529 @default.
• W2018550924 cites W2016396108 @default.
• W2018550924 cites W2027116654 @default.
• W2018550924 cites W2065694514 @default.
• W2018550924 cites W2071523316 @default.
• W2018550924 cites W2072256008 @default.
• W2018550924 cites W2075707445 @default.
• W2018550924 cites W2086793218 @default.
• W2018550924 cites W2089299127 @default.
• W2018550924 cites W2161743998 @default.
• W2018550924 cites W2475716785 @default.
• W2018550924 cites W2952367489 @default.
• W2018550924 cites W3138138101 @default.
• W2018550924 cites W4211111230 @default.
• W2018550924 cites W46942708 @default.
• W2018550924 cites W6188526 @default.
• W2018550924 doi "https://doi.org/10.1039/dt9940003099" @default.
• W2018550924 hasPublicationYear "1994" @default.
• W2018550924 type Work @default.
• W2018550924 sameAs 2018550924 @default.
• W2018550924 citedByCount "8" @default.
• W2018550924 countsByYear W20185509242016 @default.
• W2018550924 countsByYear W20185509242019 @default.
• W2018550924 countsByYear W20185509242021 @default.
• W2018550924 countsByYear W20185509242022 @default.
• W2018550924 crossrefType "journal-article" @default.
• W2018550924 hasAuthorship W2018550924A5006870660 @default.
• W2018550924 hasAuthorship W2018550924A5036234113 @default.
• W2018550924 hasAuthorship W2018550924A5043637691 @default.
• W2018550924 hasAuthorship W2018550924A5052367205 @default.
• W2018550924 hasAuthorship W2018550924A5062589649 @default.
• W2018550924 hasAuthorship W2018550924A5079736054 @default.
• W2018550924 hasAuthorship W2018550924A5081062633 @default.
• W2018550924 hasAuthorship W2018550924A5084226540 @default.
• W2018550924 hasAuthorship W2018550924A5087293411 @default.
• W2018550924 hasConcept C115624301 @default.
• W2018550924 hasConcept C121332964 @default.
• W2018550924 hasConcept C147789679 @default.
• W2018550924 hasConcept C178790620 @default.
• W2018550924 hasConcept C184651966 @default.
• W2018550924 hasConcept C185592680 @default.
• W2018550924 hasConcept C187961010 @default.
• W2018550924 hasConcept C200119971 @default.
• W2018550924 hasConcept C2780263894 @default.
• W2018550924 hasConcept C32909587 @default.
• W2018550924 hasConcept C46062151 @default.
• W2018550924 hasConcept C46141821 @default.
• W2018550924 hasConcept C517835270 @default.
• W2018550924 hasConcept C544778455 @default.
• W2018550924 hasConcept C71240020 @default.
• W2018550924 hasConcept C73922627 @default.
• W2018550924 hasConcept C8010536 @default.
• W2018550924 hasConceptScore W2018550924C115624301 @default.
• W2018550924 hasConceptScore W2018550924C121332964 @default.
• W2018550924 hasConceptScore W2018550924C147789679 @default.
• W2018550924 hasConceptScore W2018550924C178790620 @default.
• W2018550924 hasConceptScore W2018550924C184651966 @default.
• W2018550924 hasConceptScore W2018550924C185592680 @default.
• W2018550924 hasConceptScore W2018550924C187961010 @default.
• W2018550924 hasConceptScore W2018550924C200119971 @default.
• W2018550924 hasConceptScore W2018550924C2780263894 @default.
• W2018550924 hasConceptScore W2018550924C32909587 @default.
• W2018550924 hasConceptScore W2018550924C46062151 @default.
• W2018550924 hasConceptScore W2018550924C46141821 @default.
• W2018550924 hasConceptScore W2018550924C517835270 @default.
• W2018550924 hasConceptScore W2018550924C544778455 @default.
• W2018550924 hasConceptScore W2018550924C71240020 @default.
• W2018550924 hasConceptScore W2018550924C73922627 @default.
• W2018550924 hasConceptScore W2018550924C8010536 @default.
• W2018550924 hasIssue "21" @default.
• W2018550924 hasLocation W20185509241 @default.
• W2018550924 hasOpenAccess W2018550924 @default.
• W2018550924 hasPrimaryLocation W20185509241 @default.
• W2018550924 hasRelatedWork W1998758963 @default.
• W2018550924 hasRelatedWork W2031146991 @default.
• W2018550924 hasRelatedWork W2054378776 @default.

• next