Advances in the synthetic methods often lead to discovery of new materials, and nitridocarbonates based on NCN2− anion are no exception. Recent momentum preparation processes improved understanding chemistry these compounds has resulted many “missing compounds” now being accessible. Accordingly, we here report synthesis terbium oxide carbodiimide Tb2O2NCN, one missing members family rare‐earth with general formula Ln2O2NCN. It was prepared via a solid‐state metathesis reaction at 600 °C...

A series of polycrystalline Li3Ba2La3−xEux(MoO4)8 samples were prepared by the conventional solid-state reaction. The phase formation was investigated X-ray diffraction measurements. luminescence spectra and decay curves studied as a function Eu3+ concentration temperature. It turned out that optical band gap undoped molybdates is at 3.65 eV. quantum efficiency (QE) doped luminescent materials increases with increasing almost 100% QE obtained for those 70, 80, or 90% Eu3+. sample containing...

Abstract We carried out three choice experiments with 6116 nocturnal lepidopteran individuals (95 species, 7 families, 32 075 counts), each replicated 105 times during the seasons of 2 years. Moths were released indoors at centre a 10 × m area different lamps placed corner. In experiment 1, emitted ultraviolet (UV) (peak 365 nm), blue (450 green (520 nm) or cool white and 520 radiation. 2, UV was replaced by red (640 nm). 3, we used mixed radiation emission intensities (365–520 applied...

The cluster (TBA)₂[W₆I₈(CF₃COO)₆] shows photoluminescence in the solid state and solution, singlet oxygen (a¹Δ_g) is generated presence of oxygen.

The characterization of La 2 (CN ) 3 and the luminescence :Ce 3+ are reported. This finding completes series rare-earth carbodiimdes with three distinct crystal structures coordination numbers cations.

Technological advances are intangibly linked to the preparation and description of new solid-state materials. Recently, low-dimensional lanthanide-based systems have received particular attention for their interesting magnetic luminescent properties. Thus, motivated by emergence such "NCN" chemistry, we present synthesis stoichiometric Tb(III) cyanamide LixNa1–xTb(NCN)2, which crystallizes in an orthorhombic structure where Tb3+ ions arranged well-separated one-dimensional chains parallel c...

The thermal deprotonation of melamine in the presence InCl 3 leads to novel [C 12 N 20 H 8 ] 4− tetramer, based on four melaminate ions.

Tetracyanamidometallates with the general formula RbRE[T(CN2)4] (RE = La, Pr, Nd, Gd; T Si, Ge) were prepared by solid state metathesis reactions starting from stoichiometric mixtures of RECl3, A2[TF6], and Li2(CN2). Reactions studied differential thermal analysis that showed ignition temperatures between 360 390 °C for formation RbGd[T(CN2)4] Si Ge. The powder diffraction patterns RbRE[Ge(CN2)4] indexed isotypically to already known RbRE[Si(CN2)4] compound. IR spectra RbLa[Ge(CN2)4]...

Abstract The synthesis, characterization, and luminescence properties of (Bu 4 N) 2 [Mo 6 I 8 (NCS) ] are reported. Orange crystals were crystallized from acetone solution used for X‐ray single‐crystal structure determination refinement, yielding a with centrosymmetric 2– ion. Photoluminescence studies on the crystalline solid revealed broad excitation in UV/Vis region an emission around 690 nm. red intensity decreases increasing partial pressure atmospheric molecular O .

A x [W 6 I 14 ] compounds with = Na, K, Rb, or Cs are prepared from W 3 12 and alkali iodides (AI). Crystal structures were solved refined for Na[W 2 Rb on the basis of powder single‐crystal XRD diffraction. All behave stable in air can be dissolved polar organic solvents making them valuable precursors long‐needed soluble octahedral 8 2– cluster ions. Excitation emission spectra solid reported as reference systems photophysically active L (L inorganic ligand), which developed therefrom,...

The mixed‐anionic hydride oxide chloride LiEu 2 HOCl with divalent europium was synthesized by the reduction of Eu O 3 LiH in a LiCl flux at 750 °C for 4 d silica‐jacketed niobium capsules. According to structure determination single‐crystal X‐ray diffraction yellow compound crystallizes orthorhombic space group Cmcm ( = 1492.30(11) pm, b 570.12(4) c 1143.71(8) Z 8) crystal closely related that one quaternary LiLa HO and nitride LiSr H N. On other hand it can also be derived from PbFCl‐type...

Cluster compounds (TBA) 2 [Mo 6 I 8 (CF 3 SO ) ], [W and Br ] are prepared structurally characterized from single‐crystal X‐ray diffraction data. All show red emission on photoexcitation at 400 nm. However, the phosphorescence of crystalline samples is quenched in presence oxygen, depending partial pressure oxygen. The distinct phosphorescence‐quenching behavior containing trifluoromethanesulfonato – ligands compared with corresponding trifluoroacetato COO p ‐toluolsulfonato (CH C H 4...

Abstract Mg 3 (BN 2 )N was prepared by solid state metathesis reactions and several europium (Eu 2+ ) doped samples were to discover novel red‐emitting photoluminescent (PL) materials. It turned out that the undoped showed very broad deep‐red photoluminescence ranging from about 500 nm into near infrared. Due similar spectra of unusually high FWHM values 5780 cm –1 we conclude luminescence process originates defect sites. This confirmed decay measurements which show constants for all in...

Compounds containing the [Mo 6 I 8 L ] 2– ion in which is an inorganic or organic ligand show remarkable photophysical properties. Similar properties were observed for corresponding compounds based on octahedral tungsten clusters. The of these photosensitizers are significantly impacted by six outer iodide ligands [W . To analyze role ligands, we prepared and structurally characterized cluster with [M ions (M = W, Mo; para ‐toluenesulfonate). distinct clusters analyzed respect to their...