A5050173054- Metal-Organic Frameworks: Synthesis and Applications
- Magnetism in coordination complexes
- Crystallization and Solubility Studies
- X-ray Diffraction in Crystallography
- Metal complexes synthesis and properties
- Crystallography and molecular interactions
- Organic and Molecular Conductors Research
- Lanthanide and Transition Metal Complexes
- Synthesis and biological activity
- Crystal structures of chemical compounds
- Synthesis and Characterization of Heterocyclic Compounds
- Zeolite Catalysis and Synthesis
- Multicomponent Synthesis of Heterocycles
- Inorganic Chemistry and Materials
- Concrete Corrosion and Durability
- Synthesis of Tetrazole Derivatives
- Corrosion Behavior and Inhibition
Université de Yaoundé I
2016-2024
A novel mixed barium(II)/silver(I)/chromium(III) oxalate salt, Ba0.5Ag2[Cr(C2O4)3]·5H2O (1), with open architecture has been synthesized in water and characterized by elemental analysis, vibrational electronic spectra, single crystal X-ray structure determination. Compound 1 crystallizes a monoclinic space group C2/c, unit cell parameters = 18.179(3), b 14.743(2), c 12.278(2)Å, β 113.821(3), V 3010.34(90) Å3, Z 8. The is network of anionic [Cr(C2O4)3]3- units connected through the O atoms...
The inhibition performance of 1-hydralazinophthalazine (HPZ) (1), and synthesized1-(2-[(5-methylfuran-2-yl)methylene)] hydrazono) phthalazine (MFHPZ) (2), 1-(phthalazin-1(2H)-one) [(pyridin-2-yl) ethylidene] hydrazone (ACPHPZ) (3) (2-acetylthiophene (ACTHPZ) (4) has been investigated for mild steel in 1 M HCl. Compound 4 shows maximum efficiency 93% at 5.0 × 10-3 concentration. evaluation thermodynamics activation parameters indicated spontaneous adsorption the inhibitor molecules which...
Iron(II) and manganese(II) complexes of N'-(1-(pyridin-2-yl)ethylidene)nicotinohydrazide (LH) have been synthesized characterized by elemental analysis, IR, 1H NMR spectroscopy. The crystal structure the ligand has determined single X-ray diffraction electronic spectroscopic techniques. Crystal data for LH, C13H12N4O: Orthorhombic, space group Pbcn (no. 60), a = 18.0824(3) Å, b 7.86555(14) c 16.1614(3) V 2298.60(7) Å3, Z 8, T 103 K, μ(Mo Kα) 0.093 mm-1, Dcalc 1.388 g/cm3, 36729 reflections...
By modifying the stoichiometric ratio of starting materials, two tris(oxalato)chromate(III) salts, (C7H11N2)3[Cr(C2O4)3] (1) and (C5H8N3)2(NH4)[Cr(C2O4)3]·2H2O (2) {(C7H11N2)+ = 2-amino-4,6-dimethylpyridinium, (C5H8N3)+ 2,6-diaminopyridinium}, were synthesized characterized by elemental thermal analyses, single-crystal X-ray diffraction, IR UV − Vis spectroscopies, EPR SQUID measurements. Salt 1 exhibits a 3-D supramolecular framework based on [Cr(C2O4)3]3- 2-amino-4,6-dimethylpyridinim...
A new copper(I) pyrazine-bridged coordination polymer [Cu2(pyz)3(NO3)2]·2DMF] (pyz = pyrazine) (1) has been synthesized and characterized by FT-IR, TG/DTG, DSC single crystal X-ray diffraction techniques. The crystallographic result reveals a two-dimensional network structure containing hexagonal pores. Thermal analysis of compound 1 it is stable to 380 °C, gas sorption studies showed that adsorbs 1.04 wt% hydrogen at atm 77 K. Compound crystallizes in triclinic system, space group P-1 (no....
A novel cobalt(III) salt, (H3O)0.6[Ag2.4Co(C2O4)3]∙6H2O (1), a member of the rare paramagnetic CoIII-open framework materials, has been synthesized in water and characterized by standard methods, including elemental thermal analyses, IR UV-Vis spectroscopies, single-crystal X-ray diffraction. 1 crystallizes monoclinic I2/a space group. In crystal structure, Co(III) centers are pseudo-octahedrally chelated three oxalato ligands with usual propeller orientation. The structure can be best...
A novel Co(II) oxalate hybrid salt, (C7H11N2)2[Co(C2O4)2]·5H2O (1) (C7H11N2+ = 2-amino-4,6-dimethylpyridinium cation) has been synthesized and characterized by elemental thermogravimetric analyses, FT-IR UV/Vis spectroscopies, single-crystal X-ray diffraction SQUID magnetometry. The structure of salt 1 consists zig-zag chains the [Co(C2O4)2]2- anionic complexes, with centers located in a distorted (2 + 2 2) octahedral environment six oxygen atoms from three chelating oxalato(2-) ligands....
Abstract A new salt (CH 6 N 3 )[ t -Cr(C 2 O 4 ) (H O) ]·2H ( 1 + = guanidinium cation) has been synthesized and characterized by single-crystal X-ray diffraction, FT-IR UV–Vis spectroscopies, elemental thermogravimetric analyses. In the crystal structure of , chromate(III) ion lies on an inversion center in form elongated octahedron. The coordination sphere consists four oxygen atoms two chelating oxalato ligands equatorial plane axial water ligands. structural feature focal interest is...
The dinuclear compound, [Mn2(Pyala)2(Dca)2(H2O)]n·2H2O (1) (Pyala = N-(2-pyridylmethyl)-L-alanine and Dca dicyanamide anion) has been synthesized characterized by elemental analysis, IR single crystal X-ray diffraction techniques. data for C22H26Mn2N10O6: orthorhombic, space group P212121 (no. 19), a 10.3728(8) Å, b 15.9780(12) c 16.3585(13) V 2711.2(4) Å3, Z 4, T 198(2) K, μ(MoKα) 0.989 mm-1, Dcalc 1.559 g/cm3, 129607 reflections measured (3.564° ≤ 2Θ 60.046°), 7923 unique (Rint 0.0324,...
A novel chiral Nickel (II) complex of N-(2-pyridylmethyl)-L-alanine (Hpyala) 1 has been prepared and structurally characterized by elemental analysis, FT-IR, UV-visible, TGA single crystal X-ray diffraction techniques. Complex crystallizes in an orthorhombic P212121 space group. The nickel centre the adopts a distorted octahedral geometry. This compound seen to exhibit structural diversity resulting from number lattice water molecules. photoluminescent properties this which have also...