The Sn(IV) atom in the centrosymmetric title complex, [Sn2(CH3)4(NCS)2(OH)2], adopts a distorted trigonal-bipyramidal coordination environment defined by two methyl C atoms and one bridging hydroxide group in the equatorial plane while the other bridging hydroxide group and the N atom of the thio-cyanate anion are in the apical >positions. The dinuclear species are linked through O-H⋯S and C-H⋯ S hydrogen-bonding inter-actions into a three-dimensional network.
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http://dx.doi.org/10.1107/S1600536812043462 | DOI Listing |
BDJ Open
December 2024
Department of Operative Dentistry, Faculty of Dentistry, Chulalongkorn University, 34 Henri-Dunant Road, Wangmai, Pathumwan, Bangkok, 10330, Thailand.
Introduction: Hard-setting calcium hydroxide-based materials, e.g., Dycal and Life, have been widely used for direct pulp capping.
View Article and Find Full Text PDFJ Comput Chem
January 2025
Department of Chemistry, Nebraska Center for Materials and Nanoscience, and Center for Integrated Biomolecular Communication, University of Nebraska-Lincoln, Lincoln, Nebraska, USA.
The New Delhi metallo-β-lactamase 1 (NDM-1) can hydrolyze nearly all clinically important β-lactam antibiotics, narrowing the options for effective treatment of bacterial infections. QM/MM MP2 calculations are performed to reveal the mechanism of ampicillin hydrolysis catalyzed by NDM-1. It is found that the rate-determining step is the dissociation of hydrolyzed ampicillin from the NDM-1 active site, which requires a proton transfer from the bridging neutral water molecule to the newly formed carboxylate group.
View Article and Find Full Text PDFAnal Chem
December 2024
College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong, Key Laboratory of Molecular and Nano Probes, Ministry of Education, Institute of Molecular and Nano Science, Shandong Normal University, Jinan 250014, P. R. China.
Hypochlorous acid (HClO), as an important reactive oxygen species (ROS), plays a crucial role in our daily life and in biological systems, and its convenient and accurate detection is significant and imperative. In this work, a self-calibrated multimode optical sensor for convenient and accurate HClO detection was elaborately fabricated based on a multifunctional metal-organic framework platform with catalytic active metal nodes, fluorescent responsive bridging ligands, and intrinsic pores for functional molecule accommodation. The sensor shows not only turn-on and ratiometric fluorescence response but also color change in response to HClO.
View Article and Find Full Text PDFPolymers (Basel)
November 2024
Faculty of Civil Engineering, Nguyen Tat Thanh University, 300A Nguyen Tat Thanh Street, District 4, Ho Chi Minh City 700000, Vietnam.
J Surg Res
December 2024
Department of Pediatric Surgery, Mary Bridge Children's Hospital, Tacoma, Washington.
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