Synthesis, crystal structure, phase transition and thermal behaviour of a new dabcodiium hexaaquanickel(II) bis(sulphate), (C6H14N2)[Ni(H2O)6](SO4)2

Benzopyrazinoisoindigo or Its Reduced Form? Synthesis, Clarification, and Application in Field‐Effect Transistors

“…Within the dabcodiium cations, the N–C distances and the C–N–C angles range from 1.395(6) to 1.648(6) Å and from 101.7(3) to 121.8(4)°, respectively (Table 2). These values are comparable to those found in other compounds containing the same disordered amino group 10,11,15. It is interesting to note that there is not any connection between the two types of cations.…”

Divalent Copper Selenate Complex: Two Types of Octahedral Coordination in the Unit Cell and Disordered 1,4‐Diazabicyclo[2.2.2]octane

“…The Cu-OW distances within the inorganic cation [Cu-(H 2 O) 6 ] 2+ are comparable to those observed in other sulfate or selenate based compounds. [10][11][12][13][14][15][16][17][18][19][20][21][22][23][24][25][26] The metallic octahedra are stacked one over the other along the crystallographic a and b axes (Figure 3). Each metallic octahedron, [Cu(H 2 O) 6 ] 2+ is connected to eight (SeO 4 ) 2-anions by OW-H···O hydrogen bonds, four in a bidentate manner and four in a monodentate fashion (Figure 4a).…”

“…These values are comparable to those found in other compounds containing the same disordered amino group. [10,11,15] It is interesting to note that there is not any connection between the two types of cations.…”

Phase Transition Originating from Disorder–Order Transformation Coupled with Reorientation in the Organic–Inorganic Hybrid Compound (C4H14N2)[Cd2(H2O)6(SO4)3]

“…Upon decreasing the temperature, freezing and reorientation of the organic cation and deformation of the anionic framework easily induces the phase transition . Therefore, the metal sulfate materials templated with organic amines are excellent candidates to show phase transition behavior . Naïli and Bataille and co‐workers have used organic amines as templates, including piperazine, 2‐methylpiperazine, 1,4‐diazabicyclo[2.2.2]octane (dabco), and guanidine, combined with divalent metal sulfate to synthesize a series of organic–inorganic hybrid materials.…”