Výsledky vyhledávání - "Vanya Lekova"

Akademický článek

Study on the Complex Formation and the Ion-Association of Anionic Chelate of Molybdenum(VI) with Bidentate Ligand and the Cation of 2,3,5-Triphenyl-2Н-tetrazolium chloride

Autor: Vanya Lekova, Kirila Stojnova, Petya Racheva, Vidka Divarova, Pavel Yanev

Publikováno v: Acta Chimica Slovenica, Vol 67, Iss 2, Pp 594-601 (2020)

The complex formation between the anionic chelate of molybdenum(VI) with the bidentate ligand of 3,5-dinitrocatechol (3,5-DNC) and its ion-association with the cation of 2,3,5-triphenyl-2Н-tetrazolium chloride (TTC) in the liquid-liquid extraction s

Externí odkaz: https://doaj.org/article/438a3c47fd4447839c9723178e243351

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Akademický článek

Ion-associated Complex of the Anionic Chelate of Germanium(IV) with Nitro Derivative of the Catechol and the Cation of Monotetrazolium Salt

Autor: Vanya Lekova, Kirila Stojnova

Publikováno v: Acta Chimica Slovenica, Vol 66, Iss 2, Pp 360-366 (2019)

The formation of an ion-associated complex between of the anionic chelate of germanium(IV) with 4-nitrocatechol (4-NC) and the cation of 3-(2-naphtyl)-2,5-diphenyl-2H-tetrazolium chloride (TV) was investigated by spectrophotometry. The optimum condit

Externí odkaz: https://doaj.org/article/1dae5715a0c44486821fe263550ada58

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Akademický článek

Study on the Chelate Formation and the Ion-association of Anionic Chelate of Molybdenum(VI) with 3,5-Dinitrocatechol and Monotetrazolium Cation

Autor: Kirila Stojnova, Vidka Divarova, Petya Racheva, Kristina Bozhinova, Vanya Lekova

Publikováno v: Acta Chimica Slovenica, Vol 65, Iss 1, Pp 213-220 (2018)

The equilibria of the chelate formation and ion-association in the liquid-liquid extraction system Mo(VI)‒3,5-DNC‒INT‒H2O‒CHCl3 were studied by spectrophotometry. The optimum conditions for the chelate formation and extraction of the ion-asso

Externí odkaz: https://doaj.org/article/ae1aa8ce1a024190ad3367f0f3891c6c

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Akademický článek

Study on the Equilibria of the Complex Formation of the Ion-pair of Germanium(IV) with 4-Nitrocatechol and 1,4-Diphenyl-3-(phenylamino)-1H-1,2,4-triazole

Autor: Petya Racheva, Kirila Stojnova, Vidka Divarova, Vanya Lekova

Publikováno v: Acta Chimica Slovenica, Vol 64, Iss 2, Pp 365-372 (2017)

The complex formation of the ion-pair formed between the anionic chelate of Ge(IV)‒4-nitrocatechol (4-NC) and the cation of 1,4-diphenyl-3-(phenylamino)-1H-1,2,4-triazole (Nitron, Nt) in the liquid-liquid extraction system Ge(IV)‒4-NC‒Nt‒H2O�

Externí odkaz: https://doaj.org/article/7a4a01f3c35d44caa723f9ea31dd31dc

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Akademický článek

Study on the Complex Equilibria of Molybdenum(VI) with 3,5-Dinitrocatehol and Ditetrazolium Salt

Autor: Kirila Stojnova, Petya Racheva, Vidka Divarova, Kristina Bozhinova, Vanya Lekova

Publikováno v: Acta Chimica Slovenica, Vol 63, Iss 3, Pp 654-660 (2016)

The complex formed between an anionic chelate of Mo(VI)‒3,5-dinitrocatechol (3,5-DNC) with the cation of 3,3ʹ-(3,3ʹ-dimethoxy-4,4ʹ-biphenylene)bis(2,5-diphenyl-2H-tetrazolium chloride) (Blue Tetrazolium Chloride, BTC) in the liquid-liquid extrac

Externí odkaz: https://doaj.org/article/effe186ca02c4b708eba0595f9b49016

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Study on the Complex Formation and the Ion-Association of Anionic Chelate of Molybdenum(VI) with Bidentate Ligand and the Cation of 2,3,5-Triphenyl-2Н-tetrazolium chloride

Autor: Pavel Yanev, Petya Racheva, Kirila Stojnova, Vanya Lekova, Vidka Divarova

Publikováno v: Acta Chimica Slovenica, Vol 67, Iss 2, Pp 594-601 (2020)

The complex formation between the anionic chelate of molybdenum(VI) with the bidentate ligand of 3,5-dinitrocatechol (3,5-DNC) and its ion-association with the cation of 2,3,5-triphenyl-2 Н -tetrazolium chloride (TTC) in the liquid-liquid extraction

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::057d07b2ca80edd97340212bcc9e063c
https://journals.matheo.si/index.php/ACSi/article/view/5612

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Study on the Equilibria of Chelate Formation and the Ion-association of Anionic Chelate of Germanium(IV) with 4-Nitrocatechol and 2-(4-Iodophenyl)-3-(4-nitrophenyl)-5-phenyl-2H-tetrazolium Cation

Autor: Vanya Lekova, Kirila Stojnova

Publikováno v: Russian Journal of Inorganic Chemistry. 64:1235-1241

The complex formation and the ion-association of the ion-pair formed between the anionic chelate of molybdenum(VI)‒3,5-dinitrocatechol (3,5-DNC) with the cation of 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyl-2H-tetrazolium bromide (MTT) in the liquid

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::a8354cdd66325be21ef78c79639df66c
https://doi.org/10.1134/s0036023619100152

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Ion-Associated Complex of the Anionic Chelate of Germanium(IV) with Nitro Derivative of the Catechol and the Cation of Monotetrazolium Salt

Autor: Vanya Lekova, Kirila Stojnova

Publikováno v: Acta Chimica Slovenica, Vol 66, Iss 2, Pp 360-366 (2019)

The formation of an ion-associated complex between of the anionic chelate of germanium(IV) with 4-nitrocatechol (4-NC) and the cation of 3-(2-naphtyl)-2,5-diphenyl-2 H -tetrazolium chloride (TV) was investigated by spectrophotometry. The optimum cond

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3bac9deb7ef73c9a9332c86bb1b13fad
https://pubmed.ncbi.nlm.nih.gov/33855511

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Study on the Complex Formation and the Ion-Association of Anionic Chelate of Molybdenum(VI) with Bidentate Ligand and the Cation of 2,3,5-Triphenyl-2?-tetrazolium Chloride

Autor: Kirila, Stojnova, Petya, Racheva, Vidka, Divarova, Pavel, Yanev, Vanya, Lekova

Publikováno v: Acta chimica Slovenica. 67(2)

The complex formation between the anionic chelate of molybdenum(VI) with the bidentate ligand of 3,5-dinitrocatechol (3,5-DNC) and its ion-association with the cation of 2,3,5-triphenyl-2?-tetrazolium chloride (TTC) in the liquid-liquid extraction sy

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=pmid________::bf89551c838b74557b592e10d83a617e
https://pubmed.ncbi.nlm.nih.gov/33855575

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Study on the Equilibria of the Complex Formation of the Ion-pair of Germanium(IV) with 4-Nitrocatechol and 1,4-Diphenyl-3-(phenylamino)-1H-1,2,4-triazole

Autor: Vidka Divarova, Vanya Lekova, Petya Racheva, Kirila Stojnova

Publikováno v: Acta Chimica Slovenica, Vol 64, Iss 2, Pp 365-372 (2017)

The complex formation of the ion-pair formed between the anionic chelate of Ge(IV)-4-nitrocatechol (4-NC) and the cation of 1,4-diphenyl-3-(phenylamino)-1H-1,2,4-triazole (Nitron, Nt) in the liquid-liquid extraction system Ge(IV)-4-NC-Nt-H2O-CHCl3 wa

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::32dedbfcac6939d8219bef03a30d78d8
https://doi.org/10.17344/acsi.2017.3214

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