Synthesis and Crystal Structure of a New Ion-Pair Complex Based on [Ni(tdas)2]2− Anion and Triphenylphosphinium Cation

Bis[(2-chloro-4-fluorobenzyl)triphenylphosphonium] bis(1,2,5-thiadiazole-3,4-dithiolato)nickelate(II)

“…The nickel(II) ion of the complex [Ni(tdas) 2 ] 2anion is situated on a center of symmetry within a slightly distorted square-planar coordination. The Ni1-S1 and Ni1-S2 bond lengths are 2.1842 (9) Å and 2.1966 (9) Å, and the S1-Ni1-S2 bond angle within the five-membered metalla ring is 93.18 (3)°, similar to those observed for other structures with an [Ni(tdas) 2 ] 2anion (Okuno et al, 2003;Zuo et al, 2009). In the cation, the deviations of the F and Cl atoms from the C3-C8 benzene ring are 0.082 (2)Å and -0.029 (2) Å, respectively.…”

“…For background to complexes containing the [Ni(maleonitriledithiolate) 2 ] 2À anion, see: Chen et al (2010); Hou et al (2008); Ni et al (2005); Ren et al (2002); Robertson & Cronin (2002); Xie et al (2002); Zhou et al (2011). For details of other square-planar Ni(1,2,5-thiadiazole-3,4-dithiolate) 2 complexes, see: Awaga et al (1994); Yamochi et al (2001); Okuno et al (2003); Ni et al (2004); Zuo et al (2009).…”

“…In recent years, much attention has been paid to the study of ion-pair complexes containing the [Ni(mnt) 2 ] n-(mnt is maleonitriledithiolate, n is 1 or 2) anion that possesses spin bistability with potential application as a molecular switch, in data storage or in displays (Chen et al, 2010;Hou et al, 2008;Xie et al, 2002;Zhou et al, 2011), while there is only few information available on complexes containing the [M(tdas) 2 ] n-(tdas is 1,2,5-thiadiazole-3,4-dithiolate, n is 1 or 2; M is a transition metal) anion (Awaga et al, 1994;Yamochi et al, 2001;Okuno et al, 2003). Substantial efforts have been devoted for finding more suitable counter cations to tune the stacking in the crystal structures containing [M(tdas) 2 ] nanions and also to obtain materials with interesting properties (Ni et al, 2004;Zuo et al, 2009). Substituted benzyl triphenylphosphonium as a cation has been proved to be suitable for this purpose.…”

Syntheses, crystal structures, luminescent properties of two new molecular solids with tetra(isothiocyanate)zinc(II) and substituted benzyl triphenylphosphonium cations

“…In the meanwhile, many zinc(II) compounds have aroused a great deal of interest due to their intriguing structural diversities and potential applications on luminescent materials, and the ligands which containing hetero-aromatic rings can effectively enhance the fluorescence emissions of compounds and are currently of interest in the development of fluorescent materials [17][18][19]. In recent years, our research group has used [RBzTPP] + (R = X, NO 2 or CN; TPP = triphenylphosphonium) to adjust the stacking mode of the some inorganic complex anions such as [Ni(mnt) 2 ] − and [Cu(mnt) 2 ] 2− (mnt 2− = maleonitriledithiolate), [Ni(i-mnt) 2 ] 2− (i-mnt 2− = iso-maleonitriledithiolate), [Ni(tdas) 2 ] 2− (tdas 2− = 1, 2, 5-thiadiazole-3,4-dithiolate) and [Co(NCS) 4 ] 2− (NCS − = isothiocyanate), and obtained several molecular materials [20][21][22][23][24][25][26][27][28][29]. As part of our continuing studies, substituted benzyl triphenylphosphonium cations are firstly introduced into the system containing [Zn(NCS) 4 The white single crystals suitable for the X-ray structure analysis were obtained by slowly evaporating the solution of 1 and 2 in MeOH about two weeks at room temperature.…”

Syntheses, Characterization, and Crystal Structures of Two Tetrachlorocobaltate(II) Salts With 4-Substituted Benzyl Triphenylphosphonium

“…[3,5] Our interest is in the preparation of a series of multifunctional organic cations, derivatives of [RBzTPP] + (R = X, NO 2 , or CN; TPP = triphenylphosphine), to tune the stacking mode of the complex anions such as [Ni(mnt) 2 ] -and [Cu(mnt) 2 ] 2-(mnt 2-= maleonitriledithiolate), [Ni(i-mnt) 2 ] 2-(i-mntt 2-= iso-maleonitriledithiolate), and [Ni(tdas) 2 ] 2-(tdas 2-= 1, 2, 5-thiadiazole-3,4-dithiolate)], have obtained several molecular materials. [13][14][15][16][17][18][19] …”