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TcPt crystallizes in the hexagonal P-6m2 space group. The structure is three-dimensional. Tc2+ is bonded in a 6-coordinate geometry to six equivalent Pt2- atoms. All Tc–Pt bond lengths are 2.76 Å. Pt2- is bonded to six equivalent Tc2+ and six equivalent Pt2- atoms to form a mixture of distorted corner, edge, and face-sharing PtTc6Pt6 cuboctahedra. All Pt–Pt bond lengths are 2.78 Å.
TcPt crystallizes in the trigonal R-3m space group. The structure is three-dimensional. Tc2+ is bonded in a hexagonal planar geometry to six equivalent Pt2- atoms. All Tc–Pt bond lengths are 2.78 Å. Pt2- is bonded to six equivalent Tc2+ and six equivalent Pt2- atoms to form a mixture of corner, edge, and face-sharing PtTc6Pt6 cuboctahedra. All Pt–Pt bond lengths are 2.76 Å.
Abstract High‐efficiency separation of C 6 alkanes, particularly the mono‐ and dibranched isomers by using porous solids, is of paramount significance in the petrochemical industry and, remains a daunting challenge. In this work, we report the complete separation of linear/monobranched hexanes from their dibranched isomers through selective size‐exclusion by a microporous MOF, Zn‐tcpt (H 3 tcpt=2,4,6‐tris(4‐carboxyphenoxy)‐1,3,5‐triazine), with a two‐fold interpenetrated structure of hms nets. Importantly, its adsorption capacity and selectivity are notably higher than those of the previously reported adsorbents that can split mono‐ and dibranched alkane isomers. Dynamic breakthrough measurements verify the excellent separation of C 6 alkane isomers by Zn‐tcpt, and the size‐exclusion based separation mechanism has been confirmed by ab initio materials modeling. The high‐efficiency separation of alkane isomers by Zn‐tcpt can be attributed to its optimal pore dimensions as well as high porosity.
High-efficiency separation of C 6 alkanes, particularly the mono- and dibranched isomers by using porous solids, is of paramount significance in the petrochemical industry and, remains a daunting challenge. In this work, we report the complete separation of linear/monobranched hexanes from their dibranched isomers through selective size-exclusion by a microporous MOF, Zn-tcpt (H3tcpt=2,4,6-tris(4-carboxyphenoxy)-1,3,5-triazine), with a two-fold interpenetrated structure of hms nets. Importantly, its adsorption capacity and selectivity are notably higher than those of the previously reported adsorbents that can split mono- and dibranched alkane isomers. Dynamic breakthrough measurements verify the excellent separation of C 6 alkane isomers by Zn-tcpt, and the size-exclusion based separation mechanism has been confirmed by ab initio materials modeling. Furthermore, the high-efficiency separation of alkane isomers by Zn-tcpt can be attributed to its optimal pore dimensions as well as high porosity.