solid–solid synthesis, crystal structure and thermal decomposition of copper(ii) complex of 2-picolinic acid
Authors
abstract
the copper(ii) complex [cu(pic)2]·2h2o was synthesized with 2-picolinic acid (hpic) and copper acetate as reactants by room temperature solid-solid reaction. the composition and structure of the complex was characterized by elemental analyses, single crystal x-ray diffraction, x-ray powder diffraction, ft-ir spectroscopy and thermogravimetry-differential scanning calorimetry. the crystal structure of the copper(ii) complex belongs to triclinic system and space group , with cell parameters of a = 5.1274(16) å, b = 7.641(2) å, c = 9.209(2) å,α = 74.91(2)°, β = 84.56(2)°, γ = 71.58(3)°, v = 338.48(15) å3, z = 1, f(000) = 175, r1 = 0.0530, and wr2 = 0.1141. the cu(ii) ion is six-coordinated through two nitrogen atoms from two pyridine rings and four carboxyl oxygen atoms from four different 2-picolinic acid anions, forming an elongated octahedral geometry. the interaction of carboxylate o and cu(ii) forms an one-dimensional chain structure, and the complex exhibits a two-dimensional layered structure by hydrogen bonds. the thermal decomposition processes of the complex under air include dehydration and pyrolysis of the ligand, and the final residue at about 400 °c is copper oxide.
similar resources
Solid–Solid Synthesis, Crystal Structure and Thermal Decomposition of Copper(II) Complex of 2-Picolinic Acid
The copper(II) complex [Cu(pic)2]·2H2O was synthesized with 2-picolinic acid (Hpic) and copper acetate as reactants by room temperature solid-solid reaction. The composition and structure of the complex was characterized by elemental analyses, single crystal X-ray diffraction, X-ray powder diffraction, FT-IR spectroscopy and thermogravimetry-differential scanning calor...
full textSynthesis, Crystal Structure, and Thermal Decomposition of the Cobalt(II) Complex with 2-Picolinic Acid
The cobalt(II) complex of 2-picolinic acid (Hpic), namely, [Co(pic)₂(H₂O)₂] · 2H₂O, was synthesized with the reaction of cobalt acetate and 2-picolinic acid as the reactants by solid-solid reaction at room temperature. The composition and structure of the complex were characterized by elemental analysis, infrared spectroscopy, single crystal X-ray diffraction, and thermogravimetry-differential ...
full textSynthesis of CuO nanorods via thermal decomposition of copper-dipicolinic acid complex
Template-free CuO nanorods were synthesized through a three-step chemical method with no water-insoluble materials. The first step included the preparation of a Cu-complex, which was obtained from dipicolinic acid, L-lysine, and copper nitrate. Then, as the second step, the obtained solution was allowed to be relaxed for a week to and formation of some blue single-crystals single crystals, whic...
full textSynthesis, Characterization and Crystal Structure of Caffeine Complex of Mn(II) p-Hydroxybenzoate
A new manganese(II) complex containing p-hydroxybenzoate and caffeine ligands, namely [Mn(OH-C6H4COO)2(H2O)4].2(C8H10N4O2).8H2O has been prepared. The synthesized complex has been characterized by elemental analyses, FT-IR spectroscopy, X-ray crystallography, and m...
full textSynthesis, Characterization, and Crystal Structure Determination of a New Copper(II) Complex: [H2en][Cu(pydc)2].2H2O
The new complex of [H2en][Cu(pydc)2].2H2O (1) (where H2en and pydc are ethylenediammonium and 2,6-pyridinedicarboxylate, respectively) was synthesized by the reaction of a mixture of ethylenediamine (en) and 2,6-pyridinedicarboxylic acid (H2pydc) in a mixture of CH3OH/H2O as solvent. This complex was fully characterized by elemental analysis, IR, UV–Vis spectroscopy as well as single-crystal X-...
full textlexical decomposition awareness and its effect on delayed receptive and productive recognition and recall of vocabulary knowledge of morphologically complex english words: an iranian efl context
abstract lexical knowledge of complex english words is an important part of language skills and crucial for fluent language use (nation, 2001). the present study, thus, was an attempt to assess the role of morphological decomposition awareness as a vocabulary learning strategy on learners’ productive and receptive recall and recognition of complex english words. so 90 sophomores (female and ma...
15 صفحه اولMy Resources
Save resource for easier access later
Journal title:
iranian journal of chemistry and chemical engineeringجلد ۳۵، شماره ۴، صفحات ۲۱-۲۹
Hosted on Doprax cloud platform doprax.com
copyright © 2015-2023