The high nuclearity cubane-assembled Mn-oxo clusters serve as effective precursors for the preparation of monodispersed Mn 3 O 4 nanocrystals through colloidal chemistry approach.

Four iodobismuthates, LiBiI4·5H2O (1), MgBi2I8·8H2O (2), MnBi2I8·8H2O (3), and KBiI4·H2O (4), were prepared by a facile solution route revealed thermal stability in air up to 120 °C. Crystal structures of compounds 1-4 solved single crystal X-ray diffraction method. 1: space group C2/c, = 12.535(2), b 16.0294(18), c 7.6214(9) Å, β 107.189(11)°, Z 4, R 0.029. 2: P21/c, 7.559(2), 13.1225(15), 13.927(4) 97.14(3)°, 2, 0.031. 3: 7.606(3), 13.137(3), 14.026(5) 0.056. 4: P21/n, 7.9050(16),...

Phenylenediammonium polyiodobismuthate(III), [PDA(BiI4)2·I2] (PDA = phenylenediammonium, [NH3C6H4NH3]2+), represents a new hybrid halometallate synthesized in form of black well-shaped crystals by facile reaction aqueous solution HI containing dissolved I2. It crystallizes triclinic space group P1̅ with the unit cell parameters 7.761(1) Å, b 9.259(1) c 9.689(1) α 95.68(3)°, β 103.19(3)°, γ 93.56(3)°, and Z 1. Its crystal structure comprises three levels organization discriminated type...

Exploiting a template effect of 1,4-diazacycloheptane (also known as homopiperazine, Hpipe), four new hybrid iodides, (HpipeH2)2Bi2I10·2H2O, (HpipeH2)I(I3), (HpipeH2)3I6·H2O, and (HpipeH2)3(H3O)I7, were prepared their crystal structures solved using single X-ray diffraction data. All solid-state feature the HpipeH22+ cation alternating with Bi2I104–, I3–, or I– anions solvent water H3O+ cation. assembles anionic neutral building blocks into polymer by forming strong (N)H···I (N)H···O...

A heterometallic single-source molecular precursor Li2Mn2(tbaoac)6 (1 , tbaoac = tert -butyl acetoacetato) has been specifically designed to achieve the lowest decomposition temperature and a clean conversion mixed-metal oxides. The crystal structure of this tetranuclear molecule was determined by single X-ray diffraction, retention in solution gas phase confirmed nuclear magnetic resonance spectroscopy mass spectrometry, respectively. Thermal at temperatures as low 310 oC resulted new...

New tricationic organic supramolecular tecton has been designed and synthesized. Contrary to known mono- dicationic species, this new molecule, being a “three-way connector”, allows assembling infinite sheets and...

Bismuth(II) tetra(trifluoroacetate) acts as a metalloligand toward transition-metal units to yield heterobimetallic homoleptic carboxylates [BiM(O2CCF3)4] (M=Rh, Ru; see picture). The heterometallic molecules maintain paddle-wheel structure, with single bond between bismuth and the atom, behave one-ended Lewis acids in solution solid state.

The catalytic activity of heterobimetallic Bi-Rh paddlewheel carboxylate complexes has been evaluated for the first time in context metal carbenoid chemistry. were found to effectively catalyze both cyclopropanation reactions and C-H insertions as well involving ylide intermediates with similar selectivity profiles analogous dirhodium complexes. heterometallic complex BiRh(O(2)CCF(3))(3)(O(2)CCH(3)) was be approximately 1600 times less reactive than its homometallic analogue...

Bismuth(III) hexafluoroacetylacetonate reacts readily with the first row transition-metal species to produce trinuclear heterobimetallic coordination complexes Bi2M(beta-diketonate)8 (M = Mn, Fe, Co, Ni, Cu, Zn). This unique, general approach may offer new possibilities for developing single-source molecular precursors advance oxide materials.

Mixed-ligand heterometallic compounds [BiRh(O2CCF3)4-x(O2CR)x] (R = But, x 2 (cis); R Me, Bui, 1) have been obtained by gas-phase reactions of bismuth(II) trifluoroacetate with the corresponding rhodium(II) carboxylate. This synthetic approach was found to be very effective for tuning properties and introduction chiral ligands at a heterobimetallic core.

The first single-source molecular precursor for a lithium–manganese cathode material is reported. Heterometallic β-diketonate LiMn2(thd)5 (1, thd = 2,2,6,6-tetramethyl-3,5-heptanedionate) was obtained in high yield by simple one-step solid-state reactions employing commercially available reagents. Substantial scale-up preparation of 1 achieved using solution approach. crystal structure the contains discrete Li:Mn 1:2 trinuclear molecules held together bridging diketonate ligands. complex...

Heterometallic single-source precursors with a proper sodium:transition-metal ratio for nonoxide sodium ion battery cathode materials are reported. fluorinated β-diketonates NaM(hfac)3 (M = Mn (1), Fe (2), Co (3), and Ni (4); hfac hexafluoroacetylacetonate) have been obtained on large scale, in high yield using one-step reaction that employs commercially available reagents. The complexes stable open air highly volatile. mass spectrometric investigation indicates the existence of...

The first successful high-yield solution synthesis of homobimetallic Bi2(O2CCF3)4 (1), as well heterobimetallic BiRh(O2CCF3)4 (2) and BiRh(O2CCF2CF3)4 (3), complexes is reported. It based on one-pot reduction reactions starting from Bi(III) Rh(II) carboxylates using Bi metal a reducing agent. presence small amounts diphenyl ether was found to facilitate this reaction, most probably because its good solubilizing π-stabilizing abilities. latter illustrated by the isolation structural...

A new synthetic approach based on chemical transport reactions has been introduced to obtain the Nowotny chimney ladder phase Fe2Ge3 in form of single crystals and polycrystalline powders. The possess stoichiometric composition commensurate structure Ru2Sn3 type contrast samples that are characterized by a complex microstructure. In compliance with 18-n electron counting rule formulated for T–E intermetallics, electronic calculations reveal narrow-gap semiconducting behavior favorable high...

Heterometallic single-source precursors for the preparation of sodium–rare earth metal fluorides are reported. Fluorinated β-diketonates NaRE(hfac)4 (RE = Y (1), Er (2), and Eu (3); hfac hexafluoroacetylacetonate) have been obtained on a large scale, in high yield, via one-pot reaction that utilizes commercially available starting reagents. The solid-state structures title complexes consist 1D polymeric chains with alternating [Na] [RE(hfac)4] units. Compounds 1–3 highly volatile exhibit...

Two extremely unstable copper trifluoroacetates with no exogenous ligands, namely, Cu(O2CCF3) (1) and Cu(O2CCF3)2 (2), are prepared for the first time obtained in crystalline form by deposition from vapor phase. Their structures determined X-ray crystallography. The crystallographic parameters as follows: 1, monoclinic space group P21/c, a = 9.7937(6) Å, b 15.322(1) c 12.002(1) β 106.493(9)°, Z 4; 2, orthorhombic Pcca, 16.911(1) 10.5063(9) 9.0357(6) 4. Both unique among other CuI CuII...

A bidentate bridging coordination of molecular diiodine has been found for the first time in [Rh2(O2CCF3)4I2]⋅I2, which was obtained by deposition from vapor phase. An X-ray structure reveals a zigzag chain polymer (shown picture) formed alternating [Rh2(O2CCF3)4] and I2 molecules; another molecule is clathrated within channels network.

Coordination of neutral S8 molecules by transition metal centers has been structurally confirmed for the first time. The monoadduct [Rh2(O2CCF3)4](S8) is a one-dimensional polymer with an alternating chain dirhodium(II) tetra(trifluoroacetate) and bidentate rings, whereas [Rh2(O2CCF3)4]3(S8)2 pseudo-two-dimensional ribbon in which all cyclo-S8 ligands act tridentate fashion (see picture).

More than 40 new 4- to 12-membered ring heterocycles containing various combinations of Group 14 and 16 elements Si, Sn, S, Se, Te have been synthesized fully characterized. Synthesis these small-ring as well medium-ring (mesocyclic) from alpha,omega-dihalides is facilitated by the presence gem-dialkylsilyl gem-dialkylstannyl groups in precursors. Conformations several systems solid state determined X-ray crystal structure analysis. Oxidation mixed S(Se, Te)/Si eight-membered mesocycles with...

The crystal structure of Sn3P4, a long-known tin phosphide, has been determined. It crystallizes in the trigonal space group R3̄m with unit-cell parameters = 4.4315(1) Å and c 28.393(1) (Z 3). Sn3P4 is disordered. consists alternating layers phosphorus atoms that are combined into five-layer blocks propagate along c-axis. major structural feature disordered orientation P24– dumbbells, which link atoms. latter possess two types coordination. One third reside inside block octahedrally...

Heterometallic lead−manganese β-diketonates have been isolated in pure form by several synthetic methods that include solid-state and solution techniques. Two compounds with different Pb/Mn ratios, PbMn2(hfac)6 (1) PbMn(hfac)4 (2) (hfac = hexafluoroacetylacetonate), can be obtained quantitative yield using starting materials. Single crystal X-ray investigation revealed the structure of 1 contains trinuclear molecules which lead metal center is sandwiched between two [Mn(hfac)3] units, while...

Hexafluoroacetylacetonates that contain lead and divalent first-row transition metals, PbM(hfac)(4) (M = Ni (1), Co (2), Mn (3), Fe (4), Zn (5)), have been synthesized. Their heterometallic structures are held together by strong Lewis acid-base interactions between metal atoms diketonate ligands acting in chelating-bridging fashion. Compounds 1-5 highly volatile decompose below 350 °C. Fluorinated β-diketonates used for the first time as single-source precursors preparation of mixed-metal...