The synthesis and crystal structure of a new polyoxovandium cluster anion: [As III 8V IV 14O42(0.5H2O)]4?

Abstract

The da r kbrow n co m pou nd [ N ( Me)4]4[As"'8V'V, 4042( 0. 5H20)], co nta i n i ng a sp h e ri ca I a n ion [AsII18VIV1 4042(0. 5H20)]4containing condensed V05 square pyramids and As205 units, is synthesized hydrothermally from As203, V205 and (MeJ4NOH and structurally characterized by X-ray diffraction.

Unprecedented Connection Mode of [V16Sb4O42(H2O)]8– Cluster Anions by Mn2+ Centered Complexes: Solvothermal Synthesis and Properties of {[Mn(teta)]4V16Sb4O42(H2O}n·[(H2O)12]n

“…All geometric parameters are in the range reported for POVs. [4][5][6][7][8][9][10][11][12][13][14][15][16][17][18][19][25][26][27][28][29][30][31][32][33][34][35] (Tables S2 and S3). There are only two structures reported in the CCDC, in which a Mn 2+ cation is coordinated by one teta ligand and two O atoms.…”

Two new hydrogen bond-supported supramolecular compounds assembly from arsenic vanadates and [M(H2O)6]2+ cations (MCo, Ni)

“…The arsenic-vanadium cluster has been extensively discussed in the literature [14][15][16][17]. Briefly, the [H 2 As 6 V 15 O 42 (H 2 O)] cluster consists of 15 distorted VO 5 pyramids and three handle-like As 2 O 5 moieties, which encapsulates a water molecule O(3)W at its center.…”

Exploiting the linking propensity of a water encapsulated POV cluster anion [As6V15O42(H2O)]6− towards lanthanide cations: Syntheses, crystal structures and thermal properties of [{M(H2O)7}2(As6V15O42(H2O)]·xH2O (M=La3+, Sm3+ and Ce3+; x=12, 13 and 11, respectively)

“…Among POVs, a major subclass is V/As/O heteropoly-system that is not as explored as V-O (or) V-P-O system [6][7][8][9][10][11][12][13][14][15][16]. In general, V/As/O heteropoly-systems can be divided into five different groups based on the number of As and V atoms present in these clusters [17][18][19][20][21][22] 26 ] nÀ . Compounds of (i) and (ii) types are extremely popular as far as magnetic materials are concerned.…”