Journal of Coordination Chemistry p. 1285 - 1302 (2017)
Update date:2022-08-11
Topics:
Pourayoubi, Mehrdad
Tarahhomi, Atekeh
Golen, James A.
Rheingold, Arnold L.
The first X-ray crystal structures of coordination compounds of OP[NC4H8O]3 phosphoric triamide (L) are investigated in Cl2(CH3)2Sn(trans-L)2 (1) and [Mn(H2O)4(trans-L)2]Cl2·2H2O (2) as models of molecular and salt complexes for Hirshfeld surface (HS)-based analysis. The crystal packing of 1 includes weak interactions, while in the salt complex 2, a 2-D aggregate, along the (001) plane, is mediated by normal O–H?Cl and O–H?O hydrogen bonds. In the Hirshfeld study, the crystal cohesions of 1 and 2 are recognized via H?H, O?H/H?O, and Cl?H/H?Cl contacts. Among these interactions, hydrogen bonds O–H?Cl occur in the salt structure of 2, as well as some weaker hydrogen interactions as C–H?O (1 and 2), C–H?Cl (1), and O–H?O (2). The full fingerprint plots have nearly symmetric shapes for two independent molecules of 1, while an asymmetric shape appears for the cationic component of 2. To extract more detailed information on close intermolecular contacts, the molecular surface of the previously reported structure L was also mapped. The structure 2 is the first monomeric octahedral Mn(II)–phosphoric triamide complex reported so far. Furthermore, the HS analysis of 2 is the first such study on a cation–anion complex structure including phosphoric triamide ligand.
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