Mo₃Q₇ (Q = S, Se) Clusters Containing Dithiolate/Diselenolate Ligands: Synthesis, Structures, and Their Use as Precursors of Magnetic Single‐Component Molecular Conductors

Abstract

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Quasi-one-dimensional spin-orbit-coupled correlated insulator in a multinuclear coordinated organometallic crystal

“…Hence, a quantum phase transition [40] may be induced in the family of materials based on Mo 3 S 7 (dmit) 3 crystals by substituting, say, Mo → W [20] or S → Se [14], which effectively increases the SOC. Intriguingly, although several selenated analogs of Mo 3 S 7 (dmit) 3 have been synthesized [17], little is known about their magnetic properties.…”

“…Although SOC effects are generally weak in organic systems [14], organometallic complexes provide a route for enhancing SOC [15]. Llusar et al have synthesized a particularly interesting family of trinuclear organometallic coordination complexes [16,17] with ligands that facilitate electronic transport between molecules including Mo 3 S 7 (dmit) 3 , Mo 3 Se 7 (dmit) 3 , Mo 3 S 7 (dsit) 3 , and Mo 3 Se 7 (dsit) 3 (dmit = S 5 C 3 , dsit = Se 2 S 3 C 3 ). For example, the low-energy electronic structure of Mo 3 S 7 (dmit) 3 crystals [18] is described by three Wannier orbitals per molecule that are hybrids of the Mo d orbitals and the dmit molecular orbitals leading to narrow band structures with appreciable SOC [19,20].…”

Relativistic Effects in NMR of New Prospective Water-Soluble Ligands SeP(CH2OH)3 and H[Se2P(CH2OH)2]

“…[5,6] Although THP has been known for more than 50 years, polynuclear transition metal complexes with such ligands appeared only recently [7][8][9][10]. The next step would be the preparation of selenophosphorous ligands based on THP for further synthesis of transition metal selenide clusters and complexes that may act as precursors for binary and ternary metal selenide thin films and nanodots [11][12][13][14] or may find other applications in molecular electronics due to broad variety of bonding patterns in such systems (including multicenter bonding) [15][16][17][18][19] that lead to formation of unique magneto-optical, electrical, and other properties [20][21][22].…”

Heteroleptic Phenanthroline Complexes of Trinuclear Molybdenum Clusters with Luminescent Properties

“…[1,2] The appropriate choice of outer ligands in triangular M 3 (μ 3 -Q)(μ-Q 2 ) 3 units (M = Mo, W; Q = S, Se) has resulted in homoleptic molybdenum or tungsten clusters exhibiting interesting physical properties. [4][5][6][7] In contrast, the number of heteroleptic complexes is rather small, which is mainly due to their difficult synthesis. [4][5][6][7] In contrast, the number of heteroleptic complexes is rather small, which is mainly due to their difficult synthesis.…”