Features of proteolytic properties of tetraphenylporphyrin complex with lanthanide group metals

Elena A. Tobolkina, Tatiana A. Skripnikova, Anna A. Starikova, Galina I. Shumilova, Andrey A. Pendin

Результат исследований: Научные публикации в периодических изданияхстатья

Выдержка

Demetallation of metalloporphyrin molecules is one of the essential degradation reactions in photosynthesis. The effect of metalloporphyrin nature on removal of central metals from tetraphenylporphyrin complexes based on lanthanide group metals (Dy, Er, Lu, Ho) has been studied. pH values, at which the metal ions leave the metalloporphyrin complex were established using two-phase spectrophotometric titration with potentiometric pH-control. The pH values decrease with the increase of atomic numbers of lanthanide groups, as well as with increase of 4f–electrons. The reaction of an extra ligand exchange for the hydroxide ion was studied. For Dy-, Er- and Ho-tetraphenylporphyrin complexes one particle of extra ligand coordinates with one porphyrin complex. A complex with dimeric particles can be formed for the system of Lu-tetraphenylporphyrin. Constants of the ion exchange reactions were calculated. Synopsis The effect of metalloporphyrin nature on removal of central metals from tetraphenylporphyrin complexes based on lanthanide group metals (Dy, Er, Lu, Ho) has been studied. The heterophase reaction of ion-selective electrodes were calculated, as well as the reaction of an extra ligand exchange for the hydroxide ion.

Язык оригиналаанглийский
Страницы (с-по)227-230
Число страниц4
ЖурналSpectrochimica Acta - Part A: Molecular and Biomolecular Spectroscopy
Том189
DOI
СостояниеОпубликовано - 15 янв 2018

Отпечаток

Metalloporphyrins
Lanthanoid Series Elements
Rare earth elements
Metals
Ion exchange
Ligands
metals
ligands
hydroxides
Photosynthesis
Porphyrins
Ions
ion selective electrodes
Titration
ions
photosynthesis
Metal ions
porphyrins
titration
metal ions

Предметные области Scopus

  • Аналитическая химия
  • Атомная и молекулярная физика и оптика
  • Контрольно-измерительные инструменты
  • Спектроскопия

Цитировать

Tobolkina, Elena A. ; Skripnikova, Tatiana A. ; Starikova, Anna A. ; Shumilova, Galina I. ; Pendin, Andrey A. / Features of proteolytic properties of tetraphenylporphyrin complex with lanthanide group metals. В: Spectrochimica Acta - Part A: Molecular and Biomolecular Spectroscopy. 2018 ; Том 189. стр. 227-230.
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title = "Features of proteolytic properties of tetraphenylporphyrin complex with lanthanide group metals",
abstract = "Demetallation of metalloporphyrin molecules is one of the essential degradation reactions in photosynthesis. The effect of metalloporphyrin nature on removal of central metals from tetraphenylporphyrin complexes based on lanthanide group metals (Dy, Er, Lu, Ho) has been studied. pH values, at which the metal ions leave the metalloporphyrin complex were established using two-phase spectrophotometric titration with potentiometric pH-control. The pH values decrease with the increase of atomic numbers of lanthanide groups, as well as with increase of 4f–electrons. The reaction of an extra ligand exchange for the hydroxide ion was studied. For Dy-, Er- and Ho-tetraphenylporphyrin complexes one particle of extra ligand coordinates with one porphyrin complex. A complex with dimeric particles can be formed for the system of Lu-tetraphenylporphyrin. Constants of the ion exchange reactions were calculated. Synopsis The effect of metalloporphyrin nature on removal of central metals from tetraphenylporphyrin complexes based on lanthanide group metals (Dy, Er, Lu, Ho) has been studied. The heterophase reaction of ion-selective electrodes were calculated, as well as the reaction of an extra ligand exchange for the hydroxide ion.",
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Features of proteolytic properties of tetraphenylporphyrin complex with lanthanide group metals. / Tobolkina, Elena A.; Skripnikova, Tatiana A.; Starikova, Anna A.; Shumilova, Galina I.; Pendin, Andrey A.

В: Spectrochimica Acta - Part A: Molecular and Biomolecular Spectroscopy, Том 189, 15.01.2018, стр. 227-230.

Результат исследований: Научные публикации в периодических изданияхстатья

TY - JOUR

T1 - Features of proteolytic properties of tetraphenylporphyrin complex with lanthanide group metals

AU - Tobolkina, Elena A.

AU - Skripnikova, Tatiana A.

AU - Starikova, Anna A.

AU - Shumilova, Galina I.

AU - Pendin, Andrey A.

PY - 2018/1/15

Y1 - 2018/1/15

N2 - Demetallation of metalloporphyrin molecules is one of the essential degradation reactions in photosynthesis. The effect of metalloporphyrin nature on removal of central metals from tetraphenylporphyrin complexes based on lanthanide group metals (Dy, Er, Lu, Ho) has been studied. pH values, at which the metal ions leave the metalloporphyrin complex were established using two-phase spectrophotometric titration with potentiometric pH-control. The pH values decrease with the increase of atomic numbers of lanthanide groups, as well as with increase of 4f–electrons. The reaction of an extra ligand exchange for the hydroxide ion was studied. For Dy-, Er- and Ho-tetraphenylporphyrin complexes one particle of extra ligand coordinates with one porphyrin complex. A complex with dimeric particles can be formed for the system of Lu-tetraphenylporphyrin. Constants of the ion exchange reactions were calculated. Synopsis The effect of metalloporphyrin nature on removal of central metals from tetraphenylporphyrin complexes based on lanthanide group metals (Dy, Er, Lu, Ho) has been studied. The heterophase reaction of ion-selective electrodes were calculated, as well as the reaction of an extra ligand exchange for the hydroxide ion.

AB - Demetallation of metalloporphyrin molecules is one of the essential degradation reactions in photosynthesis. The effect of metalloporphyrin nature on removal of central metals from tetraphenylporphyrin complexes based on lanthanide group metals (Dy, Er, Lu, Ho) has been studied. pH values, at which the metal ions leave the metalloporphyrin complex were established using two-phase spectrophotometric titration with potentiometric pH-control. The pH values decrease with the increase of atomic numbers of lanthanide groups, as well as with increase of 4f–electrons. The reaction of an extra ligand exchange for the hydroxide ion was studied. For Dy-, Er- and Ho-tetraphenylporphyrin complexes one particle of extra ligand coordinates with one porphyrin complex. A complex with dimeric particles can be formed for the system of Lu-tetraphenylporphyrin. Constants of the ion exchange reactions were calculated. Synopsis The effect of metalloporphyrin nature on removal of central metals from tetraphenylporphyrin complexes based on lanthanide group metals (Dy, Er, Lu, Ho) has been studied. The heterophase reaction of ion-selective electrodes were calculated, as well as the reaction of an extra ligand exchange for the hydroxide ion.

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KW - Ho-tetraphenylporphyrins

KW - Ion-selective electrode

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KW - UV–Vis spectroscopy

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DO - 10.1016/j.saa.2017.08.012

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JO - SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY

JF - SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY

SN - 1386-1425

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