The chemistry of molten acetamide and acetamide complexes

Kerridge, D.H.

doi:10.1039/cs9881700181

Cited by 77 publications

(37 citation statements)

References 3 publications

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“…Since our temperature range for the study is above and around 293 K, the nature of the deviation in conductivity isotherms above and below --323.15 K (Fig. 3) It is reported that molten acetamide, like water, under goes auto-dissociation into (CH3CONH3)+ and (CH,COHN)-ions (13). The positive deviation (~4 .…”

Section: I Mol T R a C T I O Nmentioning

confidence: 99%

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Mixed alkali effect in sodium thiocyanate–potassium thiocyanate – acetamide melt systems

Mahiuddin¹

1996

Can. J. Chem.

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Electrical conductivity and molar volume of the 0.25[xNaSCN + (1 -x)KSCN] + 0.75CH3CONH, systems were measured as functions of temperature (~293.15-358.15 K) and composition (x = 0.0 -1 . O mol fraction). Temperature dependence of the electrical conductivity was non-Arrhenius in nature and has been analysed by using the Vogel-TammannFulcher (VTF) equation. Molar volume data were fitted to an equation similar to the VTF equation based on the free volume model. Molar volumes and intrinsic volumes were found to be additive in nature. Electrical conductivity isotherms deviate from linearity in different fashion for different temperature regions. The onset of the mixed alkali effect is governed by the anion polarization effect, by a contribution of the auto-dissociated molten acetamide, and by polymeric-type solvated ions.

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Section: I Mol T R a C T I O Nmentioning

confidence: 99%

“…Molten acetamide is a good nonaqueous solvent for many inorganic salts due to its dipolar nature (13), and molten acetamide-electrolyte binary systems have a tendency to form supercooled liquid (14). It has been reported that Na' ion forms a polymeric type of solvated ion of low ionic mobility with acetamide (15).…”

Section: Introductionmentioning

confidence: 99%

Mixed alkali effect in sodium thiocyanate–potassium thiocyanate – acetamide melt systems

Mahiuddin¹

1996

Can. J. Chem.

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“…In free MBBH, the IR bands observed at 3330, 1600 and 1100 cm )1 have been assigned to t(NH), amide t(C=O) and t(C-N-C) of morpholine group respectively [21].…”

Section: Infrared Spectramentioning

confidence: 99%

Mixed ligand complexes of FeIII containing pseudohalides, nitrosyl and some mannich bases

Anand

2007

Transition Met Chem

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Reactions of Pentapseudohalonitrosyl ferrate(II) with Morpholinobenzyl benzamide(MBB) and Piperidinobenzyl benzamide(PBB) formed complexes of the type, [Fe(X) 3 (NO)(L-L)] where X = CN ) , NCO ) and N 3 ) and L-L = Morpholinobenzyl benzamide(MBB) and Piperidinobenzyl benzamide(PBB). These compounds have been characterized by various physico-chemical techniques such as elemental analysis, molar conductance, magnetic susceptibility measurements, i.r., electronic spectra, thermal gravimetric analysis. The molecular modeling Studies have been carried out for structural analysis for some of the complexes have been carried out using Hyperchem release 7.52 professional version.

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“…Li salts can be used for Lewis-acid-mediated rearrangements [29]. Solutions of LiCl in N,N-dimethylacetamide are used as unique,') media for poly( 1 ,Cbenzamide) (X(C0-C,H,-NH),H) [30] and for cellulose [31], and the solutions of Li salts in molten acetamide have intriguing properties [32]. Otherwise insoluble polylithiated species can be solubilized by LiX addition [ 11 [3312').…”

Section: )mentioning

confidence: 99%

Solubilization of Peptides in Non‐polar Organic Solvents by the Addition of Inorganic Salts: Facts and Implications

Seebàch¹,

Thaler²,

Beck

1989

Helvetica Chimica Acta

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The solubility of open‐chain peptide derivatives (12 examples) in non‐polar, ether‐type organic solvents may be greatly increased by addition of salts (LiCl, LiBr, LiI, LiBF4, LiClO4, NaI, MgBr2 CaBr2, ZnCl2) or of titanates (Ti(OEt)4, Ti(OCHMe2)4). Examples are reported (Tables 2–6) in which this solubilizing effect leads to peptide concentrations more than one‐hundred‐fold those in the absence of salt (cf, BocAlaGlyGlyGlyOH in THF from 2g·1−1 to ≥ 300 g·1−1 with 6 equiv. of LiCl), 1H‐NMR Spectra of one of these solutions are reported (Fig. 1). There are no indications for epimerizations of stereogenic centres on the peptide backbone. Possible applications of these solutions in peptide chemistry are discussed.

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The chemistry of molten acetamide and acetamide complexes

Cited by 77 publications

References 3 publications

Mixed alkali effect in sodium thiocyanate–potassium thiocyanate – acetamide melt systems

Mixed alkali effect in sodium thiocyanate–potassium thiocyanate – acetamide melt systems

Mixed ligand complexes of FeIII containing pseudohalides, nitrosyl and some mannich bases

Solubilization of Peptides in Non‐polar Organic Solvents by the Addition of Inorganic Salts: Facts and Implications

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