Benzotriazolate cage complexes of tin(ii) and lithium: halide-influenced serendipitous assembly

Abstract

The one-pot reactions of the tin(II) halides SnX 2 (X = F, Cl, Br, I) with lithium hexamethyldisilazide, [Li(hmds)], and benzotriazole, (bta)H, produce contrasting outcomes.

Recent advances in the coordination chemistry of benzotriazole-based ligands

“…In this case, four PPh3 molecules and one chloride act as the terminal ligands, with the latter also contributing to the charge balance of the complex. The mixed-metal design approach utilizing benzotriazole was also adopted in a series of reports [35,36] Similar investigations with various Fe III sources led to the construction of two more polynuclear complexes, formed as [Fe5O2(OMe)2(bta)4(Hbta)(MeOH)5Cl5] ( 16) and [Fe14(bta)6O6(OMe)18Cl6] ( 17) respectively [40][41][42]. The former compound exhibits a structural motif that is similar to the one described in compound 1; however, in this case a protonated Hbta unit is also observed, acting (20), as reported in a subsequent study [43].…”

Heteropentanuclear {Ru(II)Cu(II)4} Kuratowski Complexes Assembled from a Ruthenium(II) Precursor Complex to Study Competing Exchange Interactions in M(II)(ta)2 Networks [ta(−) = 1,2,3-Triazolate]

“…9−11 Hence, the design and characterization of copperbased magnetic molecules with competing interactions are of general interest for both basic research and application. 1,2,3-Triazoles are nitrogen-containing heterocycles, known for forming a wide variety of coordination structures, e.g., homo- 12−15 or heteronuclear complexes, 16,17 coordination polymers, 17−19 and metal−organic frameworks (MOFs). 20−26 A feature of these structures can be metal-centered {MM 4 } tetrahedra which have recently been subject of detailed magnetic studies.…”

“…1,2,3-Triazoles are nitrogen-containing heterocycles, known for forming a wide variety of coordination structures, e.g., homo- − or heteronuclear complexes, , coordination polymers, − and metal–organic frameworks (MOFs). − A feature of these structures can be metal-centered {MM 4 } tetrahedra which have recently been subject of detailed magnetic studies. − The pentanuclear Kuratowski complexes are coordination structures with this characteristic, which have been intensely investigated in our group. − These complexes consist of one central metal ion coordinated octahedrally by six 1,2,3-triazolates and four peripheral metal ions which span a tetrahedron around the center . Within this structure, the central metal ion is bound to the middle (N 2 ) of the three N-donor atoms of the triazole ring system.…”

[Co5Tp*4(Me2bta)6]: A Highly Symmetrical Pentanuclear Kuratowski Complex Featuring Tris(pyrazolyl)borate and Benzotriazolate Ligands

“…The coordination properties of 1,2,3-triazolates have found widespread use in the synthesis of multinuclear, supramolecular structures such as homo- and heteronuclear complexes, linear and planar coordination polymers, and metal–organic frameworks (MOFs) . All of these feature the unique arrangement of three neighboring N-donor atoms, mostly coordinated to transition metals, although coordination to other metals has also been reported .…”