Syntheses, crystal structures and magnetic properties of three new molecular magnets by self-assembly of bis(maleonitriledithiolate)nickel(III) anion and substituted N,N′-dibenzylpiperidinium

Syntheses, crystal structures and properties of two new molecular solids by self-assembly of bis(maleonitriledithiolate)nickel(III)/copper(II) anion and substituted 4-fluorobenzyl isoquinolinium cation

“…The adjacent cations at first form a dimer via pÁÁÁp interactions with a distance of 3.700 Å, and further the adjacent dimers are disposed in the dimer-chair-conformation manner via C-HÁ Á ÁF hydrogen bonds (the C(15)Á Á ÁF(1) and H(15)Á Á ÁF(1) distances are 3.493 and 2.565 Å, and the bond angle is 133.4 ) [33] and FÁ Á ÁF short interactions with a F(1)Á Á ÁF(1 iii ) (symmetry code: iii = Àx À 1, Ày + 1, Àz + 1) distance of 2.879 Å (Fig. 2(a)) [33,34]. An interesting feature of 1 is that there exist two arranging modes between the cations and anions: (1) the 1D chain in a Á Á ÁA-CC-A-CC-AÁ Á Á sequence (Fig.…”

“…There are two structural features found in [4FBzIQl] + cations: (1) the two neighboring cations (C 1 ) contain the F(1) atom form a dimer through C-HÁ Á ÁF hydrogen bonds (the C(12)Á Á ÁF(1) and H(12)Á Á ÁF (1) distances are 3.488 and 2.802 Å, respectively) and the FÁ Á ÁF interaction with a F(1)Á Á ÁF(1 iv ) distance of 3.099 Å (symmetry code: iv = Àx, Ày + 1, Àz) (Fig. 3(c)) [33,34]; (2) the cations (C 2 ) contain the F(2) atom form a 2D layered structure through C-HÁ Á ÁF hydrogen bonds and pÁ Á Áp interactions (Fig. 3(d)) with the centroidÁ Á Ácentroid distances between the neighboring phenyl or isoquinolinium rings of 3.528 Å or 3.700 Å, respectively.…”

Syntheses, one-dimensional chain structures and magnetic properties for two molecular metals of bis(maleonitriledithiolate)nickel(III) anion and disubstituted benzyl triphenylphosphonium

“…Investigations have shown that the counter ions of the [M(mnt) 2 ] n− (M = transition metal, n = 1 or 2) anion play a crucial role in determining the interactions and in packing of the anions as well as the physical and chemical properties of the solids. There are many molecular solids based on [Ni(mnt) 2 ] − anion have been synthesized, and some intermolecular interactions between [Ni(mnt) 2 ] − anions and counter cations have significant influences to their functional optimization [11][12][13][14][15]. Therefore, it is meaningful for the design and preparation of new counter-cations for adjust the overlap patterns of [Ni(mnt) 2 ] − anions in order to build a relationship between the intermolecular and its function.…”