TY  - JOUR
AU  - Mioč, Ubavka B.
AU  - Todorović, Marija R.
AU  - Uskoković-Marković, Snežana
AU  - Nedić, Zoran P.
AU  - Stamenković, Vojislav
AU  - Čajkovski, Tamara
PY  - 2000
UR  - https://farfar.pharmacy.bg.ac.rs/handle/123456789/262
AB  - In this paper local processes and structural phase transformations of the copper salt of 12-tungstophosphoric acid are investigated. The structural phase transformations were followed through bands, characteristic for the host lattice, in the IR and Raman spectra. The results of these investigations, as well as those of XRPD analysis and impedance measurements as a function of temperature show that some local processes provoke the change in the secondary structure of the Keggin anions.
AB  - U ovom radu ispitivani su lokalni procesi i strukturne fazne transformacije soli bakra 12-volframfosforne kiseline. Strukturne fazne transformacije praćene su preko traka karakterističnih za kristalnu rešetku u infracrvenim i ramanskim spektrima. Rezultati ovih ispitivanja, kao i oni dobiveni rendgeno-strukturnom analizom i iz impedansnih merenja, odnosno provodljivost u funkciji temperature, pokazuju da je fazna transformacija vezana za promene lokalne strukture, tj. sekundarne strukture Keginovih anjona. PR Projekat Ministarstva nauke Republike Srbije.
PB  - Srpsko hemijsko društvo, Beograd
T2  - Journal of the Serbian Chemical Society
T1  - Structural modifications of Cu(II) 12-tungstophosphoric acid salt studied by IR and Raman spectroscopy
T1  - IR i ramanska ispitivanja strukturnih modifikacija bakarne soli 12-volframfosforne kiseline
VL  - 65
IS  - 5-6
SP  - 407
EP  - 415
UR  - https://hdl.handle.net/21.15107/rcub_vinar_6292
ER  - 

@article{
author = "Mioč, Ubavka B. and Todorović, Marija R. and Uskoković-Marković, Snežana and Nedić, Zoran P. and Stamenković, Vojislav and Čajkovski, Tamara",
year = "2000",
abstract = "In this paper local processes and structural phase transformations of the copper salt of 12-tungstophosphoric acid are investigated. The structural phase transformations were followed through bands, characteristic for the host lattice, in the IR and Raman spectra. The results of these investigations, as well as those of XRPD analysis and impedance measurements as a function of temperature show that some local processes provoke the change in the secondary structure of the Keggin anions., U ovom radu ispitivani su lokalni procesi i strukturne fazne transformacije soli bakra 12-volframfosforne kiseline. Strukturne fazne transformacije praćene su preko traka karakterističnih za kristalnu rešetku u infracrvenim i ramanskim spektrima. Rezultati ovih ispitivanja, kao i oni dobiveni rendgeno-strukturnom analizom i iz impedansnih merenja, odnosno provodljivost u funkciji temperature, pokazuju da je fazna transformacija vezana za promene lokalne strukture, tj. sekundarne strukture Keginovih anjona. PR Projekat Ministarstva nauke Republike Srbije.",
publisher = "Srpsko hemijsko društvo, Beograd",
journal = "Journal of the Serbian Chemical Society",
title = "Structural modifications of Cu(II) 12-tungstophosphoric acid salt studied by IR and Raman spectroscopy, IR i ramanska ispitivanja strukturnih modifikacija bakarne soli 12-volframfosforne kiseline",
volume = "65",
number = "5-6",
pages = "407-415",
url = "https://hdl.handle.net/21.15107/rcub_vinar_6292"
}

Mioč, U. B., Todorović, M. R., Uskoković-Marković, S., Nedić, Z. P., Stamenković, V.,& Čajkovski, T.. (2000). Structural modifications of Cu(II) 12-tungstophosphoric acid salt studied by IR and Raman spectroscopy. in Journal of the Serbian Chemical Society
Srpsko hemijsko društvo, Beograd., 65(5-6), 407-415.
https://hdl.handle.net/21.15107/rcub_vinar_6292

Mioč UB, Todorović MR, Uskoković-Marković S, Nedić ZP, Stamenković V, Čajkovski T. Structural modifications of Cu(II) 12-tungstophosphoric acid salt studied by IR and Raman spectroscopy. in Journal of the Serbian Chemical Society. 2000;65(5-6):407-415.
https://hdl.handle.net/21.15107/rcub_vinar_6292 .

Mioč, Ubavka B., Todorović, Marija R., Uskoković-Marković, Snežana, Nedić, Zoran P., Stamenković, Vojislav, Čajkovski, Tamara, "Structural modifications of Cu(II) 12-tungstophosphoric acid salt studied by IR and Raman spectroscopy" in Journal of the Serbian Chemical Society, 65, no. 5-6 (2000):407-415,
https://hdl.handle.net/21.15107/rcub_vinar_6292 .

TY  - JOUR
AU  - Mioč, Ubavka B.
AU  - Todorović, Marija R.
AU  - Uskoković-Marković, Snežana
AU  - Nedić, Zoran P.
AU  - Bošnjaković, Nada S.
PY  - 2000
UR  - https://farfar.pharmacy.bg.ac.rs/handle/123456789/263
AB  - In this paper the latest results of our continuing investigation of heteropoly acids and their salts are reported. Specially attention was paid to the influence of cations on the dynamic equilibrium of protonic species, as well as on the structure of the host lattice itself, i.e., the Keggin anions. The investigations were done by IR and Raman spectroscopy within the range of 1200-40 cm-1.
AB  - U ovom radu saopšteni su poslednji rezultati naših sistematskih ispitivanja heteropolikiselina i njihovih soli. Posebna pažnja posvećena je uticaju katjona na dinamičku ravnotežu protonskih vrsta, kao i na strukturu kristalne rešetke, odnosno Keginovih anjona. Ispitivanja su vršena metodama infracrvene i ramanske spektroskopije u oblasti 1200-40 cm-1. Dobijeni rezultati su važni za objašnjenje mehanizma provodljivosti, kao i za rešavanje problema praktične primene ovih jedinjenja kao čvrstih elektrolita. PR Projekat Ministarstva nauke Republike Srbije.
PB  - Srpsko hemijsko društvo, Beograd
T2  - Journal of the Serbian Chemical Society
T1  - A spectroscopic investigation of 12-tungstophosphoric acid alkali salts
T1  - Spektralno ispitivanje soli alkalnih elemenata 12-volframfosforne kiseline
VL  - 65
IS  - 5-6
SP  - 399
EP  - 406
UR  - https://hdl.handle.net/21.15107/rcub_farfar_263
ER  - 

@article{
author = "Mioč, Ubavka B. and Todorović, Marija R. and Uskoković-Marković, Snežana and Nedić, Zoran P. and Bošnjaković, Nada S.",
year = "2000",
abstract = "In this paper the latest results of our continuing investigation of heteropoly acids and their salts are reported. Specially attention was paid to the influence of cations on the dynamic equilibrium of protonic species, as well as on the structure of the host lattice itself, i.e., the Keggin anions. The investigations were done by IR and Raman spectroscopy within the range of 1200-40 cm-1., U ovom radu saopšteni su poslednji rezultati naših sistematskih ispitivanja heteropolikiselina i njihovih soli. Posebna pažnja posvećena je uticaju katjona na dinamičku ravnotežu protonskih vrsta, kao i na strukturu kristalne rešetke, odnosno Keginovih anjona. Ispitivanja su vršena metodama infracrvene i ramanske spektroskopije u oblasti 1200-40 cm-1. Dobijeni rezultati su važni za objašnjenje mehanizma provodljivosti, kao i za rešavanje problema praktične primene ovih jedinjenja kao čvrstih elektrolita. PR Projekat Ministarstva nauke Republike Srbije.",
publisher = "Srpsko hemijsko društvo, Beograd",
journal = "Journal of the Serbian Chemical Society",
title = "A spectroscopic investigation of 12-tungstophosphoric acid alkali salts, Spektralno ispitivanje soli alkalnih elemenata 12-volframfosforne kiseline",
volume = "65",
number = "5-6",
pages = "399-406",
url = "https://hdl.handle.net/21.15107/rcub_farfar_263"
}

Mioč, U. B., Todorović, M. R., Uskoković-Marković, S., Nedić, Z. P.,& Bošnjaković, N. S.. (2000). A spectroscopic investigation of 12-tungstophosphoric acid alkali salts. in Journal of the Serbian Chemical Society
Srpsko hemijsko društvo, Beograd., 65(5-6), 399-406.
https://hdl.handle.net/21.15107/rcub_farfar_263

Mioč UB, Todorović MR, Uskoković-Marković S, Nedić ZP, Bošnjaković NS. A spectroscopic investigation of 12-tungstophosphoric acid alkali salts. in Journal of the Serbian Chemical Society. 2000;65(5-6):399-406.
https://hdl.handle.net/21.15107/rcub_farfar_263 .

Mioč, Ubavka B., Todorović, Marija R., Uskoković-Marković, Snežana, Nedić, Zoran P., Bošnjaković, Nada S., "A spectroscopic investigation of 12-tungstophosphoric acid alkali salts" in Journal of the Serbian Chemical Society, 65, no. 5-6 (2000):399-406,
https://hdl.handle.net/21.15107/rcub_farfar_263 .

TY  - JOUR
AU  - Mioč, Ubavka B.
AU  - Todorović, Marija R.
AU  - Colomban, Ph
AU  - Nedić, Zoran P.
AU  - Uskoković-Marković, Snežana
AU  - Borcić, ID
PY  - 1999
UR  - https://farfar.pharmacy.bg.ac.rs/handle/123456789/225
AB  - This contribution presents the results of the investigation of Mg2+ and Ca2+ 12-tungstophosphoric acid (WPA) salts as superionic proton conductors. We have identified protonic species as charge carriers in several hydration degrees of these salts by IR spectroscopy at low, room and high temperatures. In the IR spectra we have found the characteristic frequencies for H3O+, OH-, H2O, H5O2+. Also, we have investigated the dynamic equilibrium between protonic entities in the function of temperature, as well as the nature and the strength of hydrogen bonds in those compounds. During the process of calcination, these salts undergo a few phase transformations. The temperatures of interest for the further investigations were taken from data of thermal analysis.
PB  - Elsevier Science BV, Amsterdam
T2  - South African Journal of Botany
T1  - Identification of protonic species and their dynamic equilibrium in magnesium and calcium salts of 12-tungstophosphoric acid
VL  - 125
IS  - 1-4
SP  - 425
EP  - 429
DO  - 10.1016/S0167-2738(99)00205-2
ER  - 

@article{
author = "Mioč, Ubavka B. and Todorović, Marija R. and Colomban, Ph and Nedić, Zoran P. and Uskoković-Marković, Snežana and Borcić, ID",
year = "1999",
abstract = "This contribution presents the results of the investigation of Mg2+ and Ca2+ 12-tungstophosphoric acid (WPA) salts as superionic proton conductors. We have identified protonic species as charge carriers in several hydration degrees of these salts by IR spectroscopy at low, room and high temperatures. In the IR spectra we have found the characteristic frequencies for H3O+, OH-, H2O, H5O2+. Also, we have investigated the dynamic equilibrium between protonic entities in the function of temperature, as well as the nature and the strength of hydrogen bonds in those compounds. During the process of calcination, these salts undergo a few phase transformations. The temperatures of interest for the further investigations were taken from data of thermal analysis.",
publisher = "Elsevier Science BV, Amsterdam",
journal = "South African Journal of Botany",
title = "Identification of protonic species and their dynamic equilibrium in magnesium and calcium salts of 12-tungstophosphoric acid",
volume = "125",
number = "1-4",
pages = "425-429",
doi = "10.1016/S0167-2738(99)00205-2"
}

Mioč, U. B., Todorović, M. R., Colomban, P., Nedić, Z. P., Uskoković-Marković, S.,& Borcić, I.. (1999). Identification of protonic species and their dynamic equilibrium in magnesium and calcium salts of 12-tungstophosphoric acid. in South African Journal of Botany
Elsevier Science BV, Amsterdam., 125(1-4), 425-429.
https://doi.org/10.1016/S0167-2738(99)00205-2

Mioč UB, Todorović MR, Colomban P, Nedić ZP, Uskoković-Marković S, Borcić I. Identification of protonic species and their dynamic equilibrium in magnesium and calcium salts of 12-tungstophosphoric acid. in South African Journal of Botany. 1999;125(1-4):425-429.
doi:10.1016/S0167-2738(99)00205-2 .

Mioč, Ubavka B., Todorović, Marija R., Colomban, Ph, Nedić, Zoran P., Uskoković-Marković, Snežana, Borcić, ID, "Identification of protonic species and their dynamic equilibrium in magnesium and calcium salts of 12-tungstophosphoric acid" in South African Journal of Botany, 125, no. 1-4 (1999):425-429,
https://doi.org/10.1016/S0167-2738(99)00205-2 . .

TY  - JOUR
AU  - Mioč, Ubavka B.
AU  - Davidović, M
AU  - Stanisavljević, B.R
AU  - Todorović, Marija R.
AU  - Nedić, Zoran P.
AU  - Uskoković-Marković, Snežana
PY  - 1996
UR  - https://farfar.pharmacy.bg.ac.rs/handle/123456789/130
AB  - Heteropoly acids arc well known as supcrionic protonic conductors at room temperature. The conductivity depends upon the temperature and relative humidity of the surrounding. Recent results show that the conductivity is very much affected by monovalent exchange counter-ions. In this work the effect of monovalent ions (Li + , Na + , K + and Cs + ) on the nature and structure of hydrogen bonds, the presence of different protonic species as charge carriers, and the dynamic equilibrium of proton species as a function of temperature and ion characteristics were investigated.
PB  - Srpsko hemijsko društvo, Beograd
T2  - Journal of the Serbian Chemical Society
T1  - Spectroscopic investigation of the effects of monovalent cations on the dynamics of protonic species in the hydrates of 12-tungstophosphoric acid salts
VL  - 61
IS  - 9
SP  - 759
EP  - 765
UR  - https://hdl.handle.net/21.15107/rcub_farfar_130
ER  - 

@article{
author = "Mioč, Ubavka B. and Davidović, M and Stanisavljević, B.R and Todorović, Marija R. and Nedić, Zoran P. and Uskoković-Marković, Snežana",
year = "1996",
abstract = "Heteropoly acids arc well known as supcrionic protonic conductors at room temperature. The conductivity depends upon the temperature and relative humidity of the surrounding. Recent results show that the conductivity is very much affected by monovalent exchange counter-ions. In this work the effect of monovalent ions (Li + , Na + , K + and Cs + ) on the nature and structure of hydrogen bonds, the presence of different protonic species as charge carriers, and the dynamic equilibrium of proton species as a function of temperature and ion characteristics were investigated.",
publisher = "Srpsko hemijsko društvo, Beograd",
journal = "Journal of the Serbian Chemical Society",
title = "Spectroscopic investigation of the effects of monovalent cations on the dynamics of protonic species in the hydrates of 12-tungstophosphoric acid salts",
volume = "61",
number = "9",
pages = "759-765",
url = "https://hdl.handle.net/21.15107/rcub_farfar_130"
}

Mioč, U. B., Davidović, M., Stanisavljević, B.R, Todorović, M. R., Nedić, Z. P.,& Uskoković-Marković, S.. (1996). Spectroscopic investigation of the effects of monovalent cations on the dynamics of protonic species in the hydrates of 12-tungstophosphoric acid salts. in Journal of the Serbian Chemical Society
Srpsko hemijsko društvo, Beograd., 61(9), 759-765.
https://hdl.handle.net/21.15107/rcub_farfar_130

Mioč UB, Davidović M, Stanisavljević B, Todorović MR, Nedić ZP, Uskoković-Marković S. Spectroscopic investigation of the effects of monovalent cations on the dynamics of protonic species in the hydrates of 12-tungstophosphoric acid salts. in Journal of the Serbian Chemical Society. 1996;61(9):759-765.
https://hdl.handle.net/21.15107/rcub_farfar_130 .

Mioč, Ubavka B., Davidović, M, Stanisavljević, B.R, Todorović, Marija R., Nedić, Zoran P., Uskoković-Marković, Snežana, "Spectroscopic investigation of the effects of monovalent cations on the dynamics of protonic species in the hydrates of 12-tungstophosphoric acid salts" in Journal of the Serbian Chemical Society, 61, no. 9 (1996):759-765,
https://hdl.handle.net/21.15107/rcub_farfar_130 .

TY  - JOUR
AU  - Mioč, Ubavka B.
AU  - Kuntić, Vesna
AU  - Nedić, Zoran P.
AU  - Filipović, I.M
AU  - Jelić, S.B
PY  - 1996
UR  - https://farfar.pharmacy.bg.ac.rs/handle/123456789/141
AB  - The influence of the Li and Na salts of 12-tungstophosphoric acid H3P W12O40(WPA) was tested for in vitro effects on blood coagulation. It was found that only Li3WPA shows anticoagulant effects, but compared with WPA activity, the activity of Li salt is diminished. IR spectroscopy was used to define the reaction between these salts, and coagulation proteins. The appearance of bands characteristic of oxonium ion (H3O+) in the IR spectra indicates blocking of the active center of the protein through a very strong hydrogen bond.
PB  - Srpsko hemijsko društvo, Beograd
T2  - Journal of the Serbian Chemical Society
T1  - Anticoagulant effect of tungstophosphoric acid salt studied by IR spectroscopy
VL  - 61
IS  - 9
SP  - 767
EP  - 771
UR  - https://hdl.handle.net/21.15107/rcub_farfar_141
ER  - 

@article{
author = "Mioč, Ubavka B. and Kuntić, Vesna and Nedić, Zoran P. and Filipović, I.M and Jelić, S.B",
year = "1996",
abstract = "The influence of the Li and Na salts of 12-tungstophosphoric acid H3P W12O40(WPA) was tested for in vitro effects on blood coagulation. It was found that only Li3WPA shows anticoagulant effects, but compared with WPA activity, the activity of Li salt is diminished. IR spectroscopy was used to define the reaction between these salts, and coagulation proteins. The appearance of bands characteristic of oxonium ion (H3O+) in the IR spectra indicates blocking of the active center of the protein through a very strong hydrogen bond.",
publisher = "Srpsko hemijsko društvo, Beograd",
journal = "Journal of the Serbian Chemical Society",
title = "Anticoagulant effect of tungstophosphoric acid salt studied by IR spectroscopy",
volume = "61",
number = "9",
pages = "767-771",
url = "https://hdl.handle.net/21.15107/rcub_farfar_141"
}

Mioč, U. B., Kuntić, V., Nedić, Z. P., Filipović, I.M,& Jelić, S.B. (1996). Anticoagulant effect of tungstophosphoric acid salt studied by IR spectroscopy. in Journal of the Serbian Chemical Society
Srpsko hemijsko društvo, Beograd., 61(9), 767-771.
https://hdl.handle.net/21.15107/rcub_farfar_141

Mioč UB, Kuntić V, Nedić ZP, Filipović I, Jelić S. Anticoagulant effect of tungstophosphoric acid salt studied by IR spectroscopy. in Journal of the Serbian Chemical Society. 1996;61(9):767-771.
https://hdl.handle.net/21.15107/rcub_farfar_141 .

Mioč, Ubavka B., Kuntić, Vesna, Nedić, Zoran P., Filipović, I.M, Jelić, S.B, "Anticoagulant effect of tungstophosphoric acid salt studied by IR spectroscopy" in Journal of the Serbian Chemical Society, 61, no. 9 (1996):767-771,
https://hdl.handle.net/21.15107/rcub_farfar_141 .