Multi-electron reactivity of a cofacial di-tin(ii) cryptand: partial reduction of sulfur and selenium and reversible generation of S3˙– † †Electronic supplementary information (ESI) available: Experimental procedures and crystallographic details. CCDC 1469593, 1469595 and 1469596. For ESI and crystallographic data in CIF or other electronic format see DOI: 10.1039/c6sc01754a Click here for additional data file. Click here for additional data file.

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Multi-electron reactivity of a cofacial di-tin(ii) cryptand: partial reduction of sulfur and selenium and reversible generation of S3˙– † †Electronic supplementary information (ESI) available: Experimental procedures and crystallographic details. CCDC 1469593, 1469595 and 1469596. For ESI and crystallographic data in CIF or other electronic format see DOI: 10.1039/c6sc01754a Click here for additional data file. Click here for additional data file.

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Title: Multi-electron reactivity of a cofacial di-tin(ii) cryptand: partial reduction of sulfur and selenium and reversible generation of S3˙– † †Electronic supplementary information (ESI) available: Experimental procedures and crystallographic details. CCDC 1469593, 1469595 and 1469596. For ESI and crystallographic data in CIF or other electronic format see DOI: 10.1039/c6sc01754a Click here for additional data file. Click here for additional data file.
Author: Stauber, Julia M.; Müller, Peter; Dai, Yizhe; Wu, Gang; Nocera, Daniel G.; Cummins, Christopher C.

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Citation: Stauber, Julia M., Peter Müller, Yizhe Dai, Gang Wu, Daniel G. Nocera, and Christopher C. Cummins. 2016. “Multi-electron reactivity of a cofacial di-tin(ii) cryptand: partial reduction of sulfur and selenium and reversible generation of S3˙– † †Electronic supplementary information (ESI) available: Experimental procedures and crystallographic details. CCDC 1469593, 1469595 and 1469596. For ESI and crystallographic data in CIF or other electronic format see DOI: 10.1039/c6sc01754a Click here for additional data file. Click here for additional data file.” Chemical Science 7 (12): 6928-6933. doi:10.1039/c6sc01754a. http://dx.doi.org/10.1039/c6sc01754a.
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Abstract: Cofacial bimetallic tin(ii) ([Sn2(mBDCA-5t)]2–, 1) and lead(ii) ([Pb2(mBDCA-5t)]2–, 2) complexes have been prepared by hexadeprotonation of hexacarboxamide cryptand mBDCA-5t-H6 together with double Sn(ii) or Pb(ii) insertion. Reaction of 1 with elemental sulfur or selenium generates di-tin polychalcogenide complexes containing μ-E and bridging μ-E5 ligands where E = S or Se, and the Sn(ii) centers have both been oxidized to Sn(iv). Solution and solid-state UV-Vis spectra of [(μ-S5)Sn2(μ-S)(mBDCA-5t)]2– (4) indicate that the complex acts reversibly as a source of S3˙– in DMF solution with a K eq = 0.012 ± 0.002. Reductive removal of all six chalcogen atoms is achieved through treatment of [(μ-E5)Sn2(μ-E)(mBDCA-5t)]2– with PR3 (R = tBu, Ph, OiPr) to produce six equiv. of the corresponding EPR3 compound with regeneration of di-tin(ii) cryptand complex 1.
Published Version: doi:10.1039/c6sc01754a
Other Sources: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5450590/pdf/
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Citable link to this page: http://nrs.harvard.edu/urn-3:HUL.InstRepos:33029991
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