The complex [Re(CO)(3)(Ph(4)TAP)(OCOCF3)] was synthesized, characterized, and studied using computational approaches. The structure of the complex was compared with similar structures in the Cambridge Structural Database. The intra- and intermolecular interactions were determined using QTAIM, NCI-IGM, and NBO approaches and compared with similar structures. The complex exhibited interesting intermolecular n -> pi* and C-HMIDLINE HORIZONTAL ELLIPSIS pi interactions, which were supported by non-classic C-HMIDLINE HORIZONTAL ELLIPSISO hydrogen bonding, resulting in the supramolecular assembly of molecules into two concurrent chains.
The complex [Re(CO)(3)(Ph(4)TAP)(OCOCF3)] where Ph(4)TAP is 2,3,6,7-tetraphenyl-1,4,5,8-tetraazaphenanthrene was synthesized, characterized and fully studied by computational approaches. The structural aspects of the complex were compared with similar structures YIBRIL and PODWIR available in the Cambridge Structural database (CSD). The intra- and intermolecular interactions were theoretically determined by QTAIM, non-covalent interaction index-independent gradient model (NCI-IGM), and natural bond orbital (NBO) approaches and compared with similar structures. The complex showed interesting intermolecular n -> pi* and C-HMIDLINE HORIZONTAL ELLIPSIS pi interactions which were supported by non-classic C-HMIDLINE HORIZONTAL ELLIPSISO hydrogen bonding, mediating the supramolecular assembly of molecules into two concurrent chains along the b- and c-axes. The molecular structure shows an interesting intramolecular n -> pi* interaction between the carboxylate group and metal-bound carbonyl ligand and also intramolecular pi MIDLINE HORIZONTAL ELLIPSIS pi* contacts of the equatorial metal-bound carbonyls and the peripheral phenyl rings. Additionally, energy decomposition analysis combined with natural orbital for chemical valence (EDA-NOCV) analysis has been performed to estimate the pairwise interaction energies in the title complex and its dimer associates.
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