Synthesis, Characterization, and Hydrolytic Behavior of Diorganotin(IV) Coordination Polymers with Layered Structural Motifs

The synthesis and structural characterization of the layered diorganotin coordination polymers nBu2Sn(HL)(OSO2Me) (1) and nBu2Sn(HL1)(OSO2Me) (2) derived from the silaalkylphosphonic acids RR12Si(CH2)3P(O)(OH)2 [R = Ph, R1 = Me (H2L); R = R1 = Et (H2L1)] are presented. The structure of H2L exhibits...

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Bibliographic Details
Published in:European journal of inorganic chemistry 2015-10, Vol.2015 (30), p.5118-5123
Main Authors: Shankar, Ravi, Singla, Nisha, Mendiratta, Swati, Kociok-Köhn, Gabriele, Molloy, Kieran C., Shestakova, Pavletta
Format: Article
Language:English
Subjects:
Assembly
Asymmetry
Chemical bonds
Coordination polymers
Hydrogen bonding
Interlayers
Lamellar structures
Layered compounds
Phosphonates
Polymers
Silicon
Stannanes
Structure elucidation
Sulfonates
Synthesis
Three dimensional
Tin
Transformations
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Summary:The synthesis and structural characterization of the layered diorganotin coordination polymers nBu2Sn(HL)(OSO2Me) (1) and nBu2Sn(HL1)(OSO2Me) (2) derived from the silaalkylphosphonic acids RR12Si(CH2)3P(O)(OH)2 [R = Ph, R1 = Me (H2L); R = R1 = Et (H2L1)] are presented. The structure of H2L exhibits O–H···O hydrogen bonding and π–π interactions to form a unique three‐dimensional supramolecular assembly in the solid state. The asymmetric units of 1 and 2 are composed of centrosymmetric eight‐membered [–Sn–O–P–O–]2 cyclic rings with appended sulfonate groups, which provide layered connectivity to the structures. For 1, the presence of C–H···π interactions between the dangling phenyl rings of the silaalkyl chains favors a lamellar arrangement with an interlayer spacing of 16.9 Å. Upon exposure to humid conditions, these polymers undergo slow transformation to nBu2Sn[O3P(CH2)3SiRR12] with the elimination of methanesulfonic acid. The mixed‐ligand diorganotin(IV) coordination polymers nBu2Sn[OP(O)(OH)R]OSO2Me [R = PhMe2Si(CH2)3 (1), Et3Si(CH2)3 (2)] featuring lamellar and layered structural motifs, respectively, are synthesized and structurally characterized.
ISSN:1434-1948
1099-0682
DOI:10.1002/ejic.201500652