Inorganic coordination complexes of manganese(II) phthalimide with primary and secondary aliphatic amines

1967 ◽  
Vol 20 (2) ◽  
pp. 227 ◽  
Author(s):  
G Narain ◽  
P Shukla
Keyword(s):  
General Formula ◽  
Analytical Data ◽  
Coordination Complexes ◽  
Aliphatic Amines ◽  
Conductivity Measurements ◽  
Visible Absorption

A series of complexes of manganese(II) phthalimide with aliphatic amines has been prepared. The general formula Mn(C8H4O2N)2(amine)4 is indicated by the analytical data. Conductivity measurements in nitrobenzene indicate the complexes to be non-electrolytes. Infrared and visible absorption spectrophotometric measurements have been made and a possible interpretation of the data has been presented.

ABSORPTION SPECTRA AND CONFIGURATION OF SOME AMINE COMPLEXES OF COPPER (II) ACETATE

1966 ◽  
Vol 44 (8) ◽  
pp. 895-898 ◽  
Author(s):  
Gopal Narain
Keyword(s):  
Molecular Weight ◽  
Absorption Spectra ◽  
Coordination Complexes ◽  
Single Band ◽  
Aliphatic Amines ◽  
Conductivity Measurements ◽  
Visible Absorption ◽  
Amine Complexes ◽  
Constituent Elements ◽  
Absorption Measurements

Coordination complexes of copper(II) acetate, ammonia, aliphatic amines, and pyridine have been prepared. Molecular formulae on the basis of percentage of constituent elements were found to be Cu(OAc)2(am)2, where OAc represents acetate ion and am any amine used. Conductivity measurements in nitrobenzene and formamide indicate that the complexes are nonelectrolytes and thus it is suggested that acetate ions are also coordinated. Molecular weight measurements in the same solvents confirm this. Visible absorption measurements in formamide show a single band at about 635 mμ.

A novel polymer electrolyte based on oligo(ethylene glycol) 600, K2PdCl4, and K3Fe(CN)6

1997 ◽  
Vol 12 (12) ◽  
pp. 3393-3403 ◽  
Author(s):  
Vito Di Noto
Keyword(s):  
Ethylene Glycol ◽  
Analytical Data ◽  
Conductivity Measurements ◽  
Poly Ethylene Glycol ◽  
Ir Studies ◽  
Structure Morphology ◽  
Different Temperatures ◽  
Ft Ir ◽  
Poly Ethylene ◽  
Peg 600

New electrolytic systems were prepared by reacting K3Fe(CN)6 and K2PdCl4 in a mixture of water and poly(ethylene glycol) 600 (PEG). The reaction occurs in two steps: first a gel is formed, which then shrinks, releasing the solvent. The product thus obtained has the consistency of a smooth, solid plastic paste and is very stable. The influence of the reaction mixture on the structure, morphology, and conductivity of the products was investigated carrying out three preparations (I, II, III) at increasing ratio PEG 600/H2O. By FT-IR studies and analytical data it was concluded that these materials are inorganic-organic networks containing CN bridges between Fe and Pd atoms and PEG 600 bridges between Pd atoms. Scanning electron microscopy studies revealed that the morphology of polymers I, II, and III is significantly influenced by the conditions of the synthesis. Conductivity measurements made at different temperatures showed that polymers I, II, and III conduct ionically. The conductivity of polymer I, which was synthesized with the highest water/PEG 600 ratio, is on the order of 1.4 · 10−3 Sycm at 25 °C.

scholarly journals Synthesis, Characterization and Thermal Studies of Fe(II), Co(II), Ni(II) and Cu(II) Complexes with bis-(4-benzylidenamino-phenyl)-methane Schiff base ligand

2021 ◽  
Vol 2063 (1) ◽  
pp. 012004
Author(s):  
Atared F. Hassan ◽  
Hiba H. Sabah ◽  
Afaq A. Turki
Keyword(s):  
Schiff Base ◽  
Metal Ions ◽  
General Formula ◽  
Elemental Analysis ◽  
Schiff Base Ligand ◽  
Thermal Studies ◽  
Molar Conductivity ◽  
Conductivity Measurements ◽  
Infra Red ◽  
Thermal Stable

Abstract A new series of Co(II), Fe(II), Cu(II) and Ni(II) complexes of Bis–(4-benzylidenamino-phenyl)-methane (L) have been prepared and characterized. The complexes conform to general formula [CoL(H2O)3] Cl2, [FeL(H2O)5]SO4.2H2O, [CuL(H2O)5] NO3 and [NiL(H2O)3Cl2], Infra red spectra and elemental analysis reveal uni-dentate coordination of Schiff base to metal ions. Molar conductivity measurements show that complexes (I, III) behave as 2:1 electrolyte while complex (II) behave as 1:1 electrolyte. The thermal studies for complexes shows that the complexes are thermal stable.

Synthesis and Characterization of Cu(I) Complex Compounds With Methyl Isonicotinate

1975 ◽  
Vol 53 (17) ◽  
pp. 2657-2663 ◽  
Author(s):  
Mohamed A. S. Goher
Keyword(s):  
Charge Transfer ◽  
Analytical Data ◽  
Complex Compounds ◽  
Synthesis And Characterization ◽  
Conductivity Measurements ◽  
Visible Spectra

The preparation of Cu(I) complexes of methyl isonicotinate, MeIN, of the formula (MeIN)nCuX, in which n = 1,2, 3, and 4 and X is Cl, Br, I, CN, SCN, and ClO4, has been described. The isolated complexes are characterized by their analytical data, diamagnetism, and conductivity measurements. The M → L charge transfer bands in the visible spectra and the i.r. spectra of these complexes are discussed.

Coordination complexes of amino acids: Preparation and properties of some Amino-acidatobis(acetylacetonato)cobalt(III) and Bis(amino-acidato)(acetylacetonato)cobalt(III) complexes

1968 ◽  
Vol 21 (3) ◽  
pp. 679 ◽  
Author(s):  
SH Laurie
Keyword(s):  
Amino Acids ◽  
Amino Acid ◽  
Absorption Band ◽  
Absorption Spectra ◽  
Coordination Complexes ◽  
Optically Active ◽  
Ultraviolet Absorption ◽  
Visible Absorption ◽  
Molecular Weights ◽  
Cotton Effects

Complexes of the type [Co(acac)2(aa)] have been synthesized, in which the amino acid is DL- and L-phenylalanine, L-valine, L-leucine, L-proline, DL-, L-,and D-alanine, and glycine. The complexes were characterized by means of analyses, molecular weights, and their infrared, visible, and ultraviolet absorption spectra. During the syntheses several of the bis(amino-acidato) complexes, [Co(acac)(aa)2], were also formed; the L-phenylalanine and glycine complexes were isolated and characterized. The complexes prepared from the optically active amino acids exhibited Cotton effects in the region of the visible absorption band (lA1g, + 1T1g). These effects have been attributed to induced asymmetry rather than stereoselectivity. Amino acids of the same configuration gave rise to Cotton effects of the same sign, ie. (-)590-[Co(acac)2(L-aa)], (-)6590-[Co(acac)(L-aa)2], and (+)590-[Co(acac),(D-aa)].

Synthesis and Physico-Chemical Properties of Alcoholato Cobalt(II) Chlorides

1980 ◽  
Vol 35 (12) ◽  
pp. 1555-1558 ◽  
Author(s):  
J. V. Singh ◽  
N. C. Jain ◽  
R. C. Mehrotra
Keyword(s):  
General Formula ◽  
Electronic Spectra ◽  
Chemical Properties ◽  
Conductivity Measurements ◽  
Tetrahedral Geometry ◽  
Octahedral Environment ◽  
Physico Chemical ◽  
Physicochemical Studies ◽  
Infra Red

Alcoholato complexes of cobalt(II) chloride with the general formula, COCl2 · xROH (where R = Me, Et, Pri, Bui, Bun, Bus and But) have been synthesised by the reactions of anhydrous CoCl2 with an excess of the appropriate alcohols under reflux. Physicochemical studies such as electronic, infra-red spectra, magnetic and conductivity measurements have been carried out to throw light on the structure of these complexes. Magnetic and electronic spectra suggest an octahedral environment for cobalt(II) in the methanolato complex and tetrahedral geometry for all other complexes.

scholarly journals Complexes With Biologically Active Ligands. Part 71 Synthesis and Fungitoxic Activity of Metal Complexes Containing 1,3,5-tris-(8-Hydroxyquinolino)- Trichlorocyclo-Triphosphazatriene

1996 ◽  
Vol 3 (5) ◽  
pp. 233-240 ◽  
Author(s):  
Mihai Barboiu ◽  
Cornelia Guran ◽  
Ioana Jitaru ◽  
Marilena Cimpoesu ◽  
Claudiu T. Supuran
Keyword(s):  
Electrical Conductivity ◽  
Ir Spectroscopy ◽  
Metal Complexes ◽  
General Formula ◽  
Elemental Analysis ◽  
Biologically Active ◽  
Conductivity Measurements ◽  
Candida Spp

Complexes containing 1,3,5-tris-(8-hydroxyquinolino)-trichlorocyclotriphosphazatriene, a new cyclophosphazene ligand, and Co(II), Cu(II) and Ni(II) were prepared. The new complexes, having the general formula [MLCl2], [ML2]Cl2, (M=Cu, Co, Ni); [NiLAc], [NiL2Ac]Ac and [ML3]X3 (M=Ni, Co, X=Cl, Ac) were characterised by elemental analysis, electronic-, IR spectroscopy, and electrical conductivity measurements. Some of them inhibited the growth of several fungi species (Aspergillus and Candida spp.)

scholarly journals Synthesis and Characterization of the Adducts of Morpholinedithioccarbamate Complexes of Oxovanadium (IV), Nickel(II), and Copper(II) with Piperidine and Morpholine

2012 ◽  
Vol 9 (4) ◽  
pp. 1929-1940 ◽  
Author(s):  
Mousami Sharma ◽  
Anju Sharma ◽  
Renu Sachar
Keyword(s):  
General Formula ◽  
Thermal Studies ◽  
Analytical Data ◽  
Molar Conductance ◽  
Pyramidal Geometry ◽  
Complex Forms ◽  
Square Pyramidal Geometry ◽  
Continuous Weight ◽  
Continuous Weight Loss

A series of 1:1 adducts of bis(morpholinedithiocarbamato) complex of VO(IV), 1:1 and 1:2 adducts of bis(morpholinedithiocarbamato) complexes of Ni(II) and Cu(II) with piperidine and morpholine have been synthesized and characterized by elemental analysis, molar conductance, magnetic susceptibility, IR, UV-Vis, and TGA/DTA techniques. Analytical data reveals that VO(IV) complex forms only 1:1 adducts with the formula [VO(morphdtc)2L].H2O while Ni(II) and Cu(II) complexes form both 1:1 and 1:2 adducts with 1:1 adducts having general formula Ni(morphdtc)2.L and Cu(morphdtc)2.L and 1:2 adducts having general formula Ni(morphdtc)2.L2and Cu(morphdtc)2.L2(morphdtc = morpholinedithiocarbamate, L = morpholine and piperidine). Antifungal activity of some complexes has been carried out against the fungal strainFusarium oxysporium. Thermal studies indicate a continuous weight loss. A square pyramidal geometry has been proposed for the 1:1 adducts of Ni(II) and Cu(II) complexes while an octahedral geometry has been proposed for the 1:1 adducts of VO(IV) and for the 1:2 adducts of Ni(II) and Cu(II) complexes.

scholarly journals Crystal Chemistry of Stanfieldite, Ca7M2Mg9(PO4)12 (M = Ca, Mg, Fe2+), a Structural Base of Ca3Mg3(PO4)4 Phosphors

Crystals ◽  
2020 ◽  
Vol 10 (6) ◽  
pp. 464 ◽  
Author(s):  
Sergey N. Britvin ◽  
Maria G. Krzhizhanovskaya ◽  
Vladimir N. Bocharov ◽  
Edita V. Obolonskaya
Keyword(s):  
Crystal Structure ◽  
General Formula ◽  
Crystal Chemistry ◽  
Empirical Formula ◽  
Analytical Data ◽  
Main Group ◽  
Synthetic Analogue ◽  
Lunar Sample ◽  
Crystal Matrix ◽  
Structural Base

Stanfieldite, natural Ca-Mg-phosphate, is a typical constituent of phosphate-phosphide assemblages in pallasite and mesosiderite meteorites. The synthetic analogue of stanfieldite is used as a crystal matrix of luminophores and frequently encountered in phosphate bioceramics. However, the crystal structure of natural stanfieldite has never been reported in detail, and the data available so far relate to its synthetic counterpart. We herein provide the results of a study of stanfieldite from the Brahin meteorite (main group pallasite). The empirical formula of the mineral is Ca8.04Mg9.25Fe0.72Mn0.07P11.97O48. Its crystal structure has been solved and refined to R1 = 0.034. Stanfieldite from Brahin is monoclinic, C2/c, a 22.7973(4), b 9.9833(2), c 17.0522(3) Å, β 99.954(2)°, V 3822.5(1)Å3. The general formula of the mineral can be expressed as Ca7M2Mg7(PO4)12 (Z = 4), where the M = Ca, Mg, Fe2+. Stanfieldite from Brahin and a majority of other meteorites correspond to a composition with an intermediate Ca≈Mg occupancy of the M5A site, leading to the overall formula ~Ca7(CaMg)Mg9(PO4)12 ≡ Ca4Mg5(PO4)6. The mineral from the Lunar sample “rusty rock” 66095 approaches the M = Mg end member, Ca7Mg2Mg9(PO4)12. In lieu of any supporting analytical data, there is no evidence that the phosphor base with the formula Ca3Mg3(PO4)4 does exist.

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