Influence of the Synthesis Parameters onto Nucleation and Crystallization of Five New Tin-Sulfur Containing Compounds

Hilbert, Jessica, Naether, Christian and Bensch, Wolfgang (2014) Influence of the Synthesis Parameters onto Nucleation and Crystallization of Five New Tin-Sulfur Containing Compounds Inorganic Chemistry, 53 (11). pp. 5619-5630.

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Abstract

The distinct control of the synthesis parameters achieved crystallization of five new inorganic-organic hybrid tin sulfides with 1,10-phenanthroline (phen) as the organic component: {[Mn(phen)(2)](2)(mu(2)-Sn2S6)} (1, 3), {[Mn(phen)(2)](2)(mu(2)-Sn2S6)}center dot phen (2), {[Mn(phen)(2)](2)(mu(2)-Sn2S6)}center dot phen center dot H2O (4), and {[Mn(phen)(2)](2)[mu-eta(2)-eta(2)-SnS4](2)[Mn(phen)](2)}center dot H2O (5). Compounds 1, 3, and 4 occur successively under static conditions by increasing the reaction time up to 8 weeks. Stirring the reaction mixtures and keeping the educt ratio constant allow preparation of distinct phase pure samples within very short reaction times. At higher autogenous pressure, crystallization and conversion of several compounds are suppressed, and only 1 crystallized. Compound 2 could only be obtained in glass tubes at low pH value of the reaction mixture or at low amine concentration. Adjusting the pH value of the solution, the concentration, and the volume of the solvent, compounds 1-4 crystallize sequentially and were successively converted into each other. Results of thermal stability experiments and solubility studies suggest that compounds 1 and 3 are polymorphs following the density rule. Compounds 2 and 4 may be viewed as pseudopolymorphs of 1 and 3.

Document Type: Article
Additional Information: Times Cited: 1 0 1
Research affiliation: Kiel University > Kiel Marine Science
OceanRep > The Future Ocean - Cluster of Excellence
Kiel University
Refereed: Yes
ISSN: 0020-1669
Projects: Future Ocean
Date Deposited: 30 Mar 2015 12:21
Last Modified: 05 Apr 2018 10:35
URI: http://eprints.uni-kiel.de/id/eprint/27719

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