Synthesis and characterization of two novel copper beta-diketone complexes, where halogen bonds play a pivotal role in shaping their multifaceted structural landscape, have been done in the present study. This study employs X-ray diffraction, ultraviolet-visible (UV-vis) spectroscopy, and infrared (IR) spectroscopy to investigate two copper beta-diketone complexes, [Cu-(L1)(2)(ttfa)(2)]center dot 2CH(3)OH (1) and [Cu-(L1)-(dfpb)(2)] (2), where Httfa is 4,4,4-trifluoro-1-(thiophen-2-yl)-butan-3,1-dione and Hdfpb is 4,4-difluoro-1-phenylbutane-1,3-dione. Complex 1 displays a halogen bond, which contributes to its uniqueness. The coordination sphere around the copper atoms was found to be octahedral for complex 1 and pyramid with a square base for complex 2. The study also extensively discusses the interactions present in these complexes. Hirshfeld surface analysis was employed to gain a more detailed understanding of these interactions, and the results showed that hydrogen-bond interactions contributed above 30% of the whole surface area in both complexes. Additionally, the halogen bond in complex 1 was found to contribute approximately 8% of the surface. Overall, this study provides valuable insights into the structural properties and interactions of copper beta-diketone complexes, which could have potential applications in various fields.

C. From the aqueous systems Cd(II) - dien - [Fe(CN)(6)](3-), where dien is 1,4,7-triazaheptane, two novel ionic complexes [Cd(dien)(2)](3)[Fe(CN)(6)](2)center dot 3H(2)O (1) and NH4[Bu4N][Cd(dien)(2)](2)[Fe(CN)(6)](2) (2) were prepared and characterized by spectroscopic (IR and UV-VIS) and EDX method. Both complexes 1 and 2 exhibit ionic crystal structures built up of [Cd(dien)(2)](2+) and [Fe(CN)(6)](3-) complex ions; the respective crystals structures comprise water solvate molecules in 1 and, additional ammonium and tetrabutylammonium cations in 2. In both crystal structures the supramolecular structures are formed by extensive hydrogen bonding systems. The thermal decompositions of both complexes under dynamic conditions were studied on air. The solid residues 1R and 2R were identified by X-ray powder diffractometry as mixture of oxides formed of ferrite CdFe2O4 and CdO for 1R and iron hydroxide oxide, Fe-1.833(OH)(0.5)O-2.5 for 2R. Examination of the solid residues by SEM and EDX analyses has confirmed homogeneity of products, and for R2 discrete particles were observed. (C) 2021 Elsevier Ltd. All rights reserved.

The system CuO‐NiO‐P4O10 was investigated using a solid state reaction between CuO, NiO, and (NH4)2HPO4 in quartz crucibles at 900 °C. The powder samples were characterized by X‐ray diffraction, TG/DTA, electrochemical measurements, IR, and UV/Vis spectroscopy. Single crystals of a new quaternary phase Cu3NiO(PO4)2 were achieved by cooling the melted compound in a sealed, evacuated quartz ampoule. Cu3NiO(PO4)2 crystallizes in the monoclinic space group P21/n (no 14) with a = 8.2288(2) Å, b = 9.8773(2) Å, c = 8.2777(3) Å, β = 107.82(2)°, Z = 4. The three‐dimensional framework consists of distorted tetragonal pyramides [Cu1O5], distorted planar squares [Cu2O4], octahedra [Cu3O6], and [NiO6] and [PO4] tetrahedra. The TG‐DTA of the new phase showed an incongruent melting at 1055 °C. The open circuit voltage of this material was measured to determine the electrochemical properties. The measurement revealed an initial capacity of 236 Ah·g–1 and a voltage plateau at 2.05 V. Furthermore, it was possible to identify the phase equilibria and to obtain the phase diagram at 900 °C.

The phase diagram of the CuO—Fe 2 O 3 —P 2 O 5 system is given.

The reaction of (SeO3)4 with 1,4-dioxane (diox, dioxane) with or without diluting solvent led to the isolation of the unprecedented esters of selenic acid-1,2-ethyl selenate (CH2O)2SeO2 and the glyoxal diselenate O2Se[(OCHO)2]SeO2. It was possible to isolate an unknown dimeric form of Se2O5 (Se4O10·(diox)2) and a geometrical isomer of the mixed-valence oxide trans-Se3O7, both stabilized by dioxane. The dioxane adduct of monomeric selenium trioxide SeO3·diox was obtained from the reaction of (SeO3)4 with dioxane in liquid SO2. The reaction mechanism for the formation of these compounds was elucidated, and the molecular structure of the unstable form of the selenium trioxide was determined, consisting in a trimeric arrangement (SeO3)3.

The system CuO/In2O3/P2O5 has been investigated using solid state reaction between CuO, In2O3 and (NH4)(2)HPO4 in silica glass crucibles at 900 degrees C. The powder samples were characterized by X-ray diffraction, thermal analysis and FT-IR spectroscopy. Orange single crystals of the new quaternary phase were achieved by the process of crystallization with mineralizers in sealed silica glass ampoules. They were then analyzed with EDX and single-crystal X-ray analysis in which the composition Cu8In8P4O30 with the triclinic space group P (1) over bar (No 2) with a = 7,2429(14) angstrom, b = 8,8002(18) angstrom, c = 10,069(2) angstrom, = 103,62(3)degrees, = 106,31(3)degrees, = 101,55(3)degrees and Z = 1 was found. The three-dimensional framework consists of [InO6] octahedra and distorted [CuO6] octahedra, overcaped [InO7] prisms and [PO4] tetrahedra, also trigonal [(CuIn)O-5] bipyramids and distorted [(CuIn)O-6] octahedra, where copper and indium are partly exchanged against each other. Cu8In8P4O30 exhibits an incongruent melting point at 1023 degrees C.

Two novel heterometallic complexes [Cd(NH3)6][{VO(O2)2(OH)}2{μ-Cd(NH3)4}] (2) and [{VO(O2)2(Im)}2{μ-Cu(Im)4}] (3) (Im = imidazole) containing peroxidovanadium complexes as metalloligands were prepared and characterized by spectral methods. X-ray single-crystal analysis revealed the presence of unique trinuclear complexes in the crystal structures of 2 and 3. The structure of 2 contains an anionic complex, whose two {VO(O2)2(OH)}(2-) ions are interconnected by a {μ-Cd(NH3)4}(2+) group. Compound 3 is a trinuclear neutral complex comprising two {VO(O2)2(Im)}(-) ions and a single bridging {μ-Cu(Im)4}(2+) group. The bonding via an equatorial OH(-) ligand in 2 and via a doubly bonded apical oxygen atom in 3 represents coordination modes previously unobserved for diperoxidovanadium complexes. Compared with complex 2, density functional theory studies reported decreased Cu-μ-O bond orders and increased μ-O-V bond orders in 3, in accordance with the expected Jahn-Teller distortion of the latter complex.

Yellow [Cd(NH 3 ) 6 ] [{VO(O 2 ) 2 (OH)} 2 {Cd (NH 3 ) 4 }] (I) is precipitated from an aqueous solution of Cd(OH) 2 , NH 4 VO 3 , H 2 O 2 , NH 3 , and acetone (5 °C, 24 h).

The system CuO-Fe2O3-P2O5 has been investigated by means of the solid state reaction between CuO, Fe2O3 and (NH4)(2)HPO4 in quartz crucibles at 900 degrees C. The powder samples were characterized by X-ray diffraction, IR spectroscopy and TG/DTA. Single crystals of a new quaternary phase Cu8Fe2P4O21 were achieved by cooling from the melt of the compound in a sealed, evacuated quartz ampoule. Cu8Fe2O5(PO4)(4) crystallizes in the monoclinic space group C2/m (No 12) with a = 15.9733(8) angstrom, b = 5.9438(3) angstrom, c = 9.5530(5) angstrom, = 113.76(1)degrees, Z = 2. The three-dimensional framework consists of [FeO6] octahedra, three different [CuO5] polyhedra and [PO4] tetrahedra. Cu8Fe2P4O21 exhibits an incongruently melting point at 945 degrees C.

The absolute configuration on the vanadium atom in five new chiral dioxidovanadium Schiff base complexes derived from l-valine, l-leucine, l-histidine, l-threonine and d-threonine is discussed by the means of X-ray single crystal analysis, electronic and vibrational circular dichroism.

Two new compounds containing chiral cations and anions, [M(bpy)3][VO(O2)(ox)(bpy)]2⋅7H2O (M=Fe, Ni; bpy=2,2′-bipyridine; ox=oxalato(2–)) have been prepared and characterized by elemental analysis, vibrational spectra in the solid state, and by 51V NMR and electronic spectroscopy in solution. The compounds are isostructural and racemic. The crystal structure contains two kinds of alternating (homochiral) triple layers: (i) the layer formed by Δ-[M(bpy)3]2+ cations intercalated between two layers of A-[VO(O2)(ox)(bpy)]−, and (ii) the layer formed by Λ-[M(bpy)3]2+ cations intercalated between two layers of B-[VO(O2)(ox)(bpy)]− (A- and B-denote different enantiomers of anions).

Diperoxidovanadium complex with 1,10-phenanthroline, [N(C4H9)4]{[VO(HO2)(O2)(phen)][VO(O2)2(phen)]}⋅3H2O2⋅ H2O (1), has been prepared and characterized by infrared, Raman and 51V NMR spectra. X-ray structure analysis revealed the presence of dinuclear anion in 1 in which the [VO(HO2)(O2)(phen)] and [VO(O2)2(phen)]− entities are connected via a short, strong hydrogen bond formed between hydrogenperoxido (HO2−) and peroxido groups. Moreover, the crystal structure is stabilized by the stacking interactions between 1,10-phenanthroline ligands. We have attempted to estimate the binding energy of hydrogen bond in the dinuclear anion as well as the binding energy between stacked complex entities based on gas-phase quantum chemistry calculations.

Zeitschrift für anorganische und allgemeine ChemieVolume 638, Issue 10 p. 1621-1621 Poster Phase Diagram of Copper Iron Phophates and a New Oxide Phosphate Torsten Jahn, Torsten Jahn Fakultät Chemieingenieurwesen, HTW Dresden, Friedrich-List-Platz 1; 01069 Dresden, GermanySearch for more papers by this authorIren Weimann, Iren Weimann Fakultät Chemieingenieurwesen, HTW Dresden, Friedrich-List-Platz 1; 01069 Dresden, GermanySearch for more papers by this authorProf. Dr. Jörg Feller, Corresponding Author Prof. Dr. Jörg Feller feller@mw.htw-dresden.de Fakultät Chemieingenieurwesen, HTW Dresden, Friedrich-List-Platz 1; 01069 Dresden, GermanyFakultät Chemieingenieurwesen, HTW Dresden, Friedrich-List-Platz 1; 01069 Dresden, GermanySearch for more papers by this authorZdirad Zak, Zdirad Zak Přírodovědecká fakulta Masaryk University, 61137 Brno, Kotlářská 2, Czech RepublicSearch for more papers by this author Torsten Jahn, Torsten Jahn Fakultät Chemieingenieurwesen, HTW Dresden, Friedrich-List-Platz 1; 01069 Dresden, GermanySearch for more papers by this authorIren Weimann, Iren Weimann Fakultät Chemieingenieurwesen, HTW Dresden, Friedrich-List-Platz 1; 01069 Dresden, GermanySearch for more papers by this authorProf. Dr. Jörg Feller, Corresponding Author Prof. Dr. Jörg Feller feller@mw.htw-dresden.de Fakultät Chemieingenieurwesen, HTW Dresden, Friedrich-List-Platz 1; 01069 Dresden, GermanyFakultät Chemieingenieurwesen, HTW Dresden, Friedrich-List-Platz 1; 01069 Dresden, GermanySearch for more papers by this authorZdirad Zak, Zdirad Zak Přírodovědecká fakulta Masaryk University, 61137 Brno, Kotlářská 2, Czech RepublicSearch for more papers by this author First published: 22 August 2012 https://doi.org/10.1002/zaac.201204109Read the full textAboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onFacebookTwitterLinked InRedditWechat No abstract is available for this article. Volume638, Issue10August 2012Pages 1621-1621 RelatedInformation

The oxalato complex (EnH2)2[V2O2(O2)4(μ-C2O4)] (where En = ethane-1,2-diamine) has been prepared and characterised by elemental analysis, infrared and Raman spectra and single crystal X-ray analysis. The crystal structure is stabilised by an extensive network of simple, bi-, tri- or tetrafurcated NH···O hydrogen bonds which is supposed to have a significant role in stabilising the dinuclear solid state structure of the [V2O2(O2)4(μ-C2O4)]4− anion. The 51V NMR spectrum showed that the dinuclear complex is decomposing immediately after its dissolution in water.

Zeitschrift für anorganische und allgemeine ChemieVolume 636, Issue 11 p. 2083-2083 Poster Darstellung von Kupferzinkphosphaten Iren Weimann, Iren Weimann Chemieingenieurwesen, HTW Dresden, Friedrich-List-Platz. 1, 01069 Dresden, GermanySearch for more papers by this authorProf. Dr. Jörg Feller, Corresponding Author Prof. Dr. Jörg Feller feller@mw.htw-dresden.de Chemieingenieurwesen, HTW Dresden, Friedrich-List-Platz. 1, 01069 Dresden, GermanyChemieingenieurwesen, HTW Dresden, Friedrich-List-Platz. 1, 01069 Dresden, GermanySearch for more papers by this authorZdirad Zak, Zdirad Zak Department of Inorganic Chemistry, Masaryk University, Kotlárská 2, 61137 Brno, Czech RepublicSearch for more papers by this author Iren Weimann, Iren Weimann Chemieingenieurwesen, HTW Dresden, Friedrich-List-Platz. 1, 01069 Dresden, GermanySearch for more papers by this authorProf. Dr. Jörg Feller, Corresponding Author Prof. Dr. Jörg Feller feller@mw.htw-dresden.de Chemieingenieurwesen, HTW Dresden, Friedrich-List-Platz. 1, 01069 Dresden, GermanyChemieingenieurwesen, HTW Dresden, Friedrich-List-Platz. 1, 01069 Dresden, GermanySearch for more papers by this authorZdirad Zak, Zdirad Zak Department of Inorganic Chemistry, Masaryk University, Kotlárská 2, 61137 Brno, Czech RepublicSearch for more papers by this author First published: 06 October 2010 https://doi.org/10.1002/zaac.201009069Read the full textAboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onFacebookTwitterLinkedInRedditWechat No abstract is available for this article. Volume636, Issue11September 2010Pages 2083-2083 RelatedInformation

Zeitschrift für anorganische und allgemeine ChemieVolume 636, Issue 11 p. 2082-2082 Poster Darstellung und Charakterisierung von Kupfernickelphosphaten Iren Weimann, Iren Weimann Chemieingenieurwesen, HTW Dresden, Friedrich-List-Platz. 1, 01069 Dresden, GermanySearch for more papers by this authorProf. Dr. Jörg Feller, Corresponding Author Prof. Dr. Jörg Feller feller@mw.htw-dresden.de Chemieingenieurwesen, HTW Dresden, Friedrich-List-Platz. 1, 01069 Dresden, GermanyChemieingenieurwesen, HTW Dresden, Friedrich-List-Platz. 1, 01069 Dresden, GermanySearch for more papers by this authorZdirad Zak, Zdirad Zak Department of Inorganic Chemistry, Masaryk University, Kotlárská 2, 61137 Brno, Czech RepublicSearch for more papers by this author Iren Weimann, Iren Weimann Chemieingenieurwesen, HTW Dresden, Friedrich-List-Platz. 1, 01069 Dresden, GermanySearch for more papers by this authorProf. Dr. Jörg Feller, Corresponding Author Prof. Dr. Jörg Feller feller@mw.htw-dresden.de Chemieingenieurwesen, HTW Dresden, Friedrich-List-Platz. 1, 01069 Dresden, GermanyChemieingenieurwesen, HTW Dresden, Friedrich-List-Platz. 1, 01069 Dresden, GermanySearch for more papers by this authorZdirad Zak, Zdirad Zak Department of Inorganic Chemistry, Masaryk University, Kotlárská 2, 61137 Brno, Czech RepublicSearch for more papers by this author First published: 06 October 2010 https://doi.org/10.1002/zaac.201009068Read the full textAboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onFacebookTwitterLinkedInRedditWechat No abstract is available for this article. Volume636, Issue11September 2010Pages 2082-2082 RelatedInformation

A complete series of symmetrical and unsymmetrical isomeric pairs of 4- and 2-pyridyl substituted diketo-pyrrolo-pyrroles was synthesized. Both polymorphs of 3,6-bis-(4′-pyridyl)-2,5-dihydro-pyrrolo[3,4-c]pyrrole-1,4-dione were prepared. Asymmetrical 3-phenyl-6-pyridine-2′-yl-2,5-dihydro-pyrrolo[3,4-c]pyrrole-1,4-dione was synthesized for the first time and X-ray structure of its monocrystal was determined. Density functional theory calculations of the ground state geometry were compared with experimental X-ray diffraction data. Theoretical Raman spectra enabled to assign the main peaks of the experimental ones for all four pyridyl DPP derivatives. Crucial spectral features, which reflect the molecular and crystal (H-bond invoked) asymmetry are CO (pyrrolinone) stretching, NH (pyrrolinone) bending and trigonal (hetero)aryl bending. Sublimation temperatures of 2-pyridyl derivatives are significantly lower than for 4-pyridyl derivatives, in which stronger in-plane NH(pyrrolinone)CO(pyrrolinone) intermolecular H-bonding dominates.