Search Results - "Kamieński, Bohdan"
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Structure investigations of Schiff bases derived from 3-amino-1H-1,2,4-triazole
Published in Journal of molecular structure (15-05-2019)“…In the present paper, twelve Schiff bases derived from 3-amino-1H-1,2,4-triazole (ATz) and various benzaldehydes, and salicylaldehydes were synthesized. The…”
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Spectroscopic studies of the intramolecular hydrogen bonding in o-hydroxy Schiff bases, derived from diaminomaleonitrile, and their deprotonation reaction products
Published in Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy (15-01-2018)“…The structural study of five Schiff bases derived from diaminomaleonitrile (DAMN) and 2-hydroxy carbonyl compounds was performed using 1H, 13C and 15N NMR…”
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Nitrogen and carbon CPMAS NMR investigations of keto–enol tautomerism in asymmetric o-hydroxy Schiff bases
Published in Journal of molecular structure (16-01-2013)“…► We synthesized five o-hydroxy Schiff bases from dehydroacetic acid. ► We performed combined solution and solid state 13C and 15N NMR spectra. ► The positions…”
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Comprehensive spectroscopic characterization of finasteride polymorphic forms. Does the form X exist?
Published in Journal of pharmaceutical sciences (01-05-2015)“…The pure polymorphic forms I, II, and III of finasteride were prepared and their purity was confirmed by FTIR, differential scanning calorimetry, and X-ray…”
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Oligomeric complexes of some heteroaromatic ligands and aromatic diamines with rhodium and molybdenum tetracarboxylates: 13C and 15N CPMAS NMR and density functional theory studies
Published in Magnetic resonance in chemistry (01-05-2015)“…Seven new oligomeric complexes of 4,4′‐bipyridine; 3,3′‐bipyridine; benzene‐1,4‐diamine; benzene‐1,3‐diamine; benzene‐1,2‐diamine; and benzidine with rhodium…”
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On the different coordination of Ni II, Zn II and Cd II cations in their model Schiff base complexes – Single crystal X-ray and solid state NMR studies
Published in Polyhedron (04-01-2012)“…Different coordination of the metal cations in model Schiff base complexes influences the chemical shifts of the metal and nitrogen atoms, and well correlates…”
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X-ray, spectroscopic and computational studies of the tautomeric structure of a new hydrazone of 5-nitrosalicylaldehyde with indole-3-acetic hydrazide
Published in Journal of molecular structure (30-04-2010)“…A new hydrazone of 5-nitrosalicylaldehyde with indole-3-acetic hydrazide (NSIAH) has been obtained and its structure has been studied by X-ray, FT-IR and CPMAS…”
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Adducts of nitrogenous ligands with rhodium(II) tetracarboxylates and tetraformamidinate: NMR spectroscopy and density functional theory calculations
Published in Magnetic resonance in chemistry (01-03-2014)“…Complexation of tetrakis(μ2‐N,N'‐diphenylformamidinato‐N,N')‐di‐rhodium(II) with ligands containing nitrile, isonitrile, amine, hydroxyl, sulfhydryl,…”
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Impact of metal cation complexation and protonation on tautomeric and resonance forms of the oxaalkyl Schiff bases derived from 5-substituted salicylaldehyde and 2-hydroxy-1-naphthlaldehyde
Published in Structural chemistry (01-12-2014)“…Structures of the main resonance and tautomeric forms of three Schiff bases of 2-hydroxy-1-naphthaldehyde (1OXA), 5-bromosalicylaldehyde (2OXA) and…”
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Structure investigation of intramolecular hydrogen bond in some substituted salicylaldehydes and 4-aminoantipyrine derivatives in solution and in the solid state
Published in Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy (15-05-2013)“…[Display omitted] ► We synthesized seven o-hydroxy Schiff bases from 4-aminoantipyrine. ► We performed combined solution 1H, 13C and 15N and solid state 13C…”
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Flexible Mono- and Bis-tetraazamacrocyclic Complexes of Copper and Nickel Stabilizing Different Oxidation States
Published in European journal of inorganic chemistry (01-08-2012)“…The synthesis and structural properties of new mono‐ and bis‐macrocyclic cyclidene complexes of copper(II) andnickel(II) are presented. The compounds with…”
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NMR and X-ray studies of 2,6-bis(alkylimino)phenol Schiff bases
Published in Journal of molecular structure (12-11-2007)“…A series of model Schiff bases – 2,6-bis(alkylimino)phenol derivatives (Me, c-Pr, c-Bu, c-Pen and Ph) – has been studied by the solution and solid state (c-Pr…”
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Adducts of rhodium(II) tetraacetate with some nitrogenous organic ligands: Application of natural abundance N and C CPMAS NMR spectroscopy
Published in Solid state nuclear magnetic resonance (01-10-2007)“…Adducts of rhodium(II) tetraacetate with some nitrogenous organic ligands: 1-azabicyclo[2,2,2]octane 1, 1,2-diazabicyclo[2,2,2]octane 2, pyrazine 3, pyrimidine…”
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Synthesis, Structure and Properties of N-Acetylated Derivatives of Methyl 5-Amino-1H-[1,2,4]triazole-3-carboxylate
Published in Chemical & Pharmaceutical Bulletin (01-02-2004)“…Methyl 5-amino-1H-[1,2,4]triazole-3-carboxylate hydrochloride (1) and free ester (2) were obtained and 2 was reacted with Ac2O to give the acetylated products…”
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Oligomeric complexes of some heteroaromatic ligands and aromatic diamines with rhodium and molybdenum tetracarboxylates: 13 C and 15 N CPMAS NMR and density functional theory studies: Organic complexes of dirhodium and dimolybdenum: NMR and DFT studies
Published in Magnetic resonance in chemistry (01-05-2015)Get full text
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Polymeric adducts of rhodium(II) tetraacetate with aliphatic diamines: natural abundance 13 C and 15 N CPMAS NMR investigations
Published in Magnetic resonance in chemistry (01-12-2013)“…Complexation properties of dimeric rhodium(II) tetracarboxylates have been utilised in chemistry, spectroscopy and organic synthesis. Particularly, the…”
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Polymeric adducts of rhodium(II) tetraacetate with aliphatic diamines: natural abundance 13C and 15N CPMAS NMR investigations
Published in Magnetic resonance in chemistry (01-12-2013)“…Complexation properties of dimeric rhodium(II) tetracarboxylates have been utilised in chemistry, spectroscopy and organic synthesis. Particularly, the…”
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NMR frequency and magnetic dipole moment of (3)He nucleus
Published in Journal of magnetic resonance (1997) (01-07-2008)“…We present new gas-phase NMR spectra which relate the resonance frequency of (3)He nucleus to the resonance frequency of the proton in tetramethylsilane (TMS)…”
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13 C and 15 N CP/MAS, 1 H– 15 N SCT CP/MAS and FTIR spectroscopy as tools for qualitative detection of the presence of zwitterionic and non‐ionic forms of ansa ‐macrolide 3‐formylrifamycin SV and its derivatives in solid state
Published in Magnetic resonance in chemistry (01-01-2014)“…13 C, 15 N CP/MAS, including 1 H– 13 C and 1 H– 15 N short contact time CP/MAS experiments, and FTIR methods were applied for detailed structural…”
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