Heteroleptic bipyridine complex: Synthesis, spectral and structural analyses, and interconversion of its {Mo3S7} core to {Mo3S4} core
DC Field | Value | Language |
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dc.contributor.author | Nandi, G. | - |
dc.contributor.author | Sarkar, S. | - |
dc.contributor.author | Reddy, B.S. | - |
dc.contributor.author | Kim, TaeYoung | - |
dc.contributor.author | Tripathi, K.M. | - |
dc.date.accessioned | 2021-07-04T07:42:02Z | - |
dc.date.available | 2021-07-04T07:42:02Z | - |
dc.date.created | 2021-03-15 | - |
dc.date.issued | 2021-06-15 | - |
dc.identifier.issn | 0022-2860 | - |
dc.identifier.uri | https://scholarworks.bwise.kr/gachon/handle/2020.sw.gachon/81568 | - |
dc.description.abstract | Unsymmetrical substitution of the bromide ligands in [Et4N]2[Mo3(μ3-S)(μ-S2)3Br6] by the 2,2′-bipyridine(bpy) ligand affords neutral heteroleptic cluster Mo3(μ3-S)(μ-S2)3Br4(bpy). The single crystal analysis of the product shows that the cluster crystallizes in P-1 space group with a = 11.449(5), b = 12.842(5), c = 13.079(5); α=79.734(5), β=86.812(5), γ=66.222(5). The asymmetric unit contains one full cluster moiety, one Et4N+Br− salt and one acetonitrile solvent molecule. The free bromide ion (from Et4N+Br−) is responsible for strong halogen bonding interaction with three sulfur atoms of the cluster. The complex is formulated as [Et4N][Mo3(μ3-S)(μ-S2)3Br4(bpy).Br].CH3CN (1). Complex 1 contains a {Mo3S7} core and its treatment with excess triphenyl phosphine (PPh3) generates neutral complex 2 containing a {Mo3S4} core. Complex 2 (Mo3(μ3-S)(μ-S)3Br4(bpy)(PPh3)3) can reversibly transform to its parent compound 1 when treated with excess elemental sulfur. This transformation involves the interconversion of the disulfide bridges to sulfide bridges, while maintaining a triangular geometry with the three molybdenum centers through μ3-S bridging. The interconversion was examined by 31PNMR and FTIR spectroscopies. This interconversion is analogous to a molecular mimicry of the creation and refilling of desired sulfide vacancies. Complex 1 and complex 2 show strong emission bands at 350 and 345 nm, respectively, when their DMF solutions are excited at 300 nm. This suggests that these complexes have potential applications in photonic devices. © 2021 Elsevier B.V. | - |
dc.language | 영어 | - |
dc.language.iso | en | - |
dc.publisher | ELSEVIER | - |
dc.relation.isPartOf | Journal of Molecular Structure | - |
dc.title | Heteroleptic bipyridine complex: Synthesis, spectral and structural analyses, and interconversion of its {Mo3S7} core to {Mo3S4} core | - |
dc.type | Article | - |
dc.type.rims | ART | - |
dc.description.journalClass | 1 | - |
dc.identifier.wosid | 000637751000002 | - |
dc.identifier.doi | 10.1016/j.molstruc.2021.130138 | - |
dc.identifier.bibliographicCitation | Journal of Molecular Structure, v.1234 | - |
dc.description.isOpenAccess | N | - |
dc.identifier.scopusid | 2-s2.0-85101956247 | - |
dc.citation.title | Journal of Molecular Structure | - |
dc.citation.volume | 1234 | - |
dc.contributor.affiliatedAuthor | Kim, TaeYoung | - |
dc.contributor.affiliatedAuthor | Tripathi, K.M. | - |
dc.type.docType | Article | - |
dc.subject.keywordAuthor | Heterogeneous catalyst | - |
dc.subject.keywordAuthor | Luminescence | - |
dc.subject.keywordAuthor | Molecular mimic | - |
dc.subject.keywordAuthor | Sulfide vacancies | - |
dc.subject.keywordAuthor | Trinuclear molybdenum cluster | - |
dc.subject.keywordAuthor | Unsymmetrical substitution | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
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