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Carbonate-templated self-assembly of an alkylthiolate-bridged cadmium macrocycle.

ABSTRACT: In the presence of Cd(ClO4)2 and a base, a new mixed N,S-donor alkylthiolate ligand supported both carbonate formation from atmospheric CO2 and the self-assembly of a novel bicapped puckered (CdS)6 molecular wheel. The remarkable stability of the complex was demonstrated by slow intermolecular ligand exchange on the (2)J(HH) and J((111/113)Cd(1)H) time scales at elevated temperature. Both CO2 and the base were required to convert amorphous "CdLClO4" precipitated in the absence of air to the carbonate complex. The complex shares structural features with the ?-carbonic anhydrase class associating cadmium(II) with the biogeochemical cycling of carbon and is the first structurally characterized carbonate complex of any metal involving an alkylthiolate ligand.

SUBMITTER: Lai W

PROVIDER: S-EPMC3636063 | biostudies-literature | 2013 Mar

REPOSITORIES: biostudies-literature

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Carbonate-templated self-assembly of an alkylthiolate-bridged cadmium macrocycle.

Lai Wei W Berry Steven M SM Kaplan William P WP Hain Malia S MS Poutsma John C JC Butcher Raymond J RJ Pike Robert D RD Bebout Deborah C DC

Inorganic chemistry 20130213 5

In the presence of Cd(ClO4)2 and a base, a new mixed N,S-donor alkylthiolate ligand supported both carbonate formation from atmospheric CO2 and the self-assembly of a novel bicapped puckered (CdS)6 molecular wheel. The remarkable stability of the complex was demonstrated by slow intermolecular ligand exchange on the (2)J(HH) and J((111/113)Cd(1)H) time scales at elevated temperature. Both CO2 and the base were required to convert amorphous "CdLClO4" precipitated in the absence of air to the carb ...[more]

PMID: 23405974

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