scholarly journals On one «Obscure» Link among Derivatives of Russ. zveno

2021 ◽  
pp. 51-55
Author(s):  
Zhanna Zh. Varbot ◽  
Keyword(s):  
Interval Space ◽  
Derivatives Of ◽  
Structural Aspects

The purpose of the article is to propose an etymology of Russ. dial. south взвéнье ‘wolf’s lair’. Existent hypotheses of the word’s etymology seem to be unconvincing in semantic or structural aspects. According to the author’s hypothesis the word is derived from звено. This idea is founded on the author’s reconstruction of initial semantics and genesis of Proto-Slav. *zveno. There are several hypotheses about the origin of Proto-Slav. *zveno, but its etymology remains obscure. In previous work devoted to semantic reconstruction the analysis of Slav. lexical material enabled the author to define repeating semantic elements in Slav. words as ‘part of the whole’ / ‘one of clamped parts’ / ‘space between clamps’. Then the denotatum of Proto-Slav. *zveno was defined as ‘interval, space, orifice with some filling’. So the hypothesis was suggested about the genesis of Proto-Slav. *zveno from Ind.-eur. *ĝhēη- ‘gape’. The defined denotatum of Proto-Slav. *zveno as interval, space allowed the author to suppose that Russ. dial. south взвéнье ‘wolf’s lair’ is derived from звено, with pref. в(ъ)- (instead of usually preferred въз-).

Synthetic Studies and Structural Aspects of some Metallacyclic Derivatives of Titanium (IV) - Better Precursors for Titania

2012 ◽  
Vol 584 ◽  
pp. 411-414 ◽  
Author(s):  
Madhvesh Pathak ◽  
Blassan Samuel ◽  
Kiran Tummalapalli ◽  
Prasanth Vuppalapati Giri ◽  
Rakesh Bohra ◽  
...  
Keyword(s):  
High Yield ◽  
Chemical Analyses ◽  
Molar Ratios ◽  
Octahedral Environment ◽  
Physico Chemical ◽  
Synthetic Studies ◽  
Derivatives Of ◽  
Structural Aspects

Titanium(IV) complexes of the type [(acac)2Ti(O-G-O] and [(acac)2Ti(OCH2CH2SH)2] {where G = (CH2)2, CH2CH(CH3), CH2CH(C2H5), CH(CH3)CH(CH3) have been synthesized in high yield by the interaction of the precursor [(acac)2Ti( OR)2] {where R = Pri , Et} with a variety of glycols and thioglycols in 1:1 and 1:2 molar ratios in refluxing benzene under anhydrous condition yield heteroleptic derivatives. On the basis of physico-chemical analyses, a cis-octahedral environment around Ti (IV) is proposed.

Tellurium derivatives of 3-acetyl-2,5-dimethylthiophene: Synthetic and structural aspects

2013 ◽  
Vol 728 ◽  
pp. 44-51 ◽  
Author(s):  
Poornima Singh ◽  
Ashok K.S. Chauhan ◽  
Ray J. Butcher ◽  
Andrew Duthie
Keyword(s):  
Derivatives Of ◽  
Structural Aspects

Abbau und Toxizität von Hexachlorbicyclo [2.2.1]-hept-5-en- Derivaten (Cyclodien-Insektizide) / Structural Aspects of Biological Conversion and Toxicity of Hexachloro-norbornene Derivatives (Cyclodiene-Insecticides)

1973 ◽  
Vol 28 (3-4) ◽  
pp. 107-112 ◽  
Author(s):  
W. Rückert ◽  
K. Ballschmiter
Keyword(s):  
Molecular Structure ◽  
Musca Domestica ◽  
Oxidative Metabolism ◽  
House Fly ◽  
Piperonyl Butoxide ◽  
Biological Conversion ◽  
Cyclodiene Insecticides ◽  
Derivatives Of ◽  
Norbornene Derivatives ◽  
Structural Aspects

The aspects of molecular-structure and biological conversion have been studied for 12 derivatives of the endosulfan ether 1 [4, 5, 6, 7, 8, 8- hexachloro- 1, 3, 3a, 4, 7, 7a- hexahydro- 4, 7-methanoisobenzofuran]. Adults of a normal house-fly strain (Musca domestica) have been used in the assay. Derivatives of 1 monosubstituted in position I are found to be converted substantially faster than products disubstituted in position I and 3, respectively. Metabolism is inhibited for all compounds studied after application of piperonyl butoxide as a synergist. Besides proving that on oxidative metabolism has to be discussed and in fact could be proved for some derivatives, the intrinsic toxicity of the compounds studied shows up under these conditions. Some derivatives known to be metabolites of the pesticide Endosulfan® show a high intrinsic toxicity to houseflies if the oxidative metabolism is inhibited.

Ciprofloxacin salts with benzoic acid derivatives: structural aspects, solid-state properties and solubility performance

CrystEngComm ◽  
2020 ◽  
Vol 22 (25) ◽  
pp. 4238-4249
Author(s):  
Artem O. Surov ◽  
Nikita A. Vasilev ◽  
Alexander P. Voronin ◽  
Andrei V. Churakov ◽  
Franziska Emmerling ◽  
...  
Keyword(s):  
Solid State ◽  
Benzoic Acid ◽  
Analytical Techniques ◽  
Benzoic Acid Derivatives ◽  
Derivatives Of ◽  
Structural Aspects

In this work, three new pharmaceutical hydrated salts of ciprofloxacin with selected derivatives of benzoic acid were obtained and systematically investigated by several solid-state analytical techniques.

Coordination of Hydrazone Derivatives of 2,2'-Bipyridine-6-carbaldehyde. Electronic and Structural Aspects of the Iron(II), Cobalt(II) and Nickel(II) Complexes

1991 ◽  
Vol 44 (3) ◽  
pp. 331 ◽  
Author(s):  
D Onggo ◽  
DC Craig ◽  
AD Rae ◽  
HA Goodwin
Keyword(s):  
Metal Atom ◽  
Magnetic Moments ◽  
Spin Transition ◽  
Azomethine Nitrogen ◽  
Ligand Molecule ◽  
Monoclinic Space Group ◽  
Temperature Dependent ◽  
Thermally Induced ◽  
Derivatives Of ◽  
Structural Aspects

Iron(II), cobalt(II) and nickel(II) [MN6]2+ type complexes of the tridentate terimine ligands 2,2′-bipyridine-6-carbaldehyde phenylhydrazone ( bph ) and 2,2′-bipyridine-6-carbaldehyde 2-pyridylhydrazone ( bpyh ) have been prepared. The electronic spectrum of the [NiN6]2+ species indicates that the field strength of these ligands is near that at the iron(II) singlet/quintet crossover. Magnetic and Mossbauer spectral data reveal that salts of [Fe( bph )2]2+ are essentially low spin, while those of [Fe( bpyh )2]2+ are high spin. Salts of [Co( bph )2]2+ have strongly temperature-dependent magnetic moments which indicate a thermally induced doublet ↔ quartet spin transition in the metal atom. The structure of [Ni( bph )2][ClO4]2 reveals meridional coordination of the tridentate units, the azomethine nitrogen of the hydrazone moiety being bound to the metal atom. There is significant twisting (8.3°) of the two pyridyl rings in each ligand molecule about the interring bridge. The [NiN6]2+ fragment is tetragonally compressed and the mean Ni-N distance is 2.09 Ǻ. [Ni( bph )2][ClO4]2 is monoclinic, space group C2/c, Z = 4, a 23.949(3), b 7.868(1), c 21.303(3)Ǻ, β 117.95(2)°.

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