The non-coordinating anion 1,1,3,3-tetracyano-2-propoxy-propenide as an anion-π donor in cis-diaquabis(2,2′-dipyridylamine)zinc and its cadmium analog: Luminescence properties, Hirshfeld analysis and central-atom induced polymorphism

Hydrothermal Preparation of a Series of Luminescent Cadmium(II) and Zinc(II) Coordination Complexes and Enhanced Real‐time Photo‐luminescent Sensing for Benzaldehyde

“…The two neighboring Zn ions are linked by ligand nitrogen atoms, where each L′ serves as a didentate bridging ligand (Figure ). The bond lengths associated with the central Zn 2+ ions in 3 are in the range of 2.060 (2) Å to 2.249 (2) Å, which can be compared with a previous report . It should be given highly attention to the methylene unit in the ligand, which is replaced by the carbonyl group.…”

Synthesis, Structure and Hirshfeld Surface Analysis of a New Iron Complex [Fe(N4Py)(tcnspr)] (tcnspr)

“…H atoms were located in difference-Fourier maps but introduced in calculated positions and treated as riding on their parent atoms, with C-H = 0.93 and 0.97 Å with Uiso(H) = 1.2Ueq(C). The disordered (tcnspr) molecule was refined by splitting atoms over two positions (A and B parts) with occupancy factors of 0.681 (6) and 0.319 (6). Constraints EXYZ and EADP on bond lengths were applied.…”

“…As a consequence of their ability to link metal ions in a variety of different ways, organic polynitrile anions, either functioning alone or in combination with neutral co-ligands, provide opportunities for the generation of molecular architectures with varying dimensions and topologies [1][2][3][4][5][6][7]. The presence of other potential donor groups such as those derived from -OH, -SH or -NH2, together with their rigidity and electronic delocalization, mean that polynitrile anions can also lead to new magnetic and luminescent coordination polymers based on transition-metal ions [8][9][10][11][12].…”

fac-Triaqua(1,10-phenanthroline-κ2N,N′)(sulfato-κO)cobalt(II): crystal structure, Hirshfeld surface analysis and computational study

“…As a consequence of their ability to link metal ions in a variety of different ways, polynitrile anions, either functioning alone or in combination with neutral co-ligands, provide opportunities for the generation of molecular architectures with varying dimensions and topologies (Benmansour et al, 2012). The presence of other potential donor groups such as those derived from -OH, -SH or -NH 2 , together with their rigidity and electronic delocalization, mean that polynitrile anions can also lead to new magnetic and luminescent coordination polymers based on transition-metal ions (Benmansour et al, 2010;Kayukov et al, 2017;Lehchili et al, 2017;Setifi et al, 2017). Furthermore, the use of polynitrile anions for the synthesis of interesting discrete and polymeric bistable materials has been described (Setifi et al, 2014;Milin et al, 2016;Pittala et al, 2017).…”