Water-soluble carbonyl complexes of 99Tc(I) and Re(I) with adamantane-cage aminophosphines PTA and CAP

Alexander E. Miroslavov, Sergey N. Britvin, Henrik Braband, Roger Alberto, Ekaterina S. Stepanova, Anna P. Shevyakova, Georgy V. Sidorenko, Alexander A. Lumpov

Результат исследований: Научные публикации в периодических изданияхстатья

Выдержка

Pentacarbonyl complexes of 99Tc and Re [M(CAP)(CO)5]X and [M(PTA)(CO)5]X (M = 99Tc or Re and X = ClO4 or OTf) with aminophosphine ligands 1,4,7-triaza-9-phosphatricyclo[5.3.214,9]tridecane (CAP) and 1,3,5-triaza-7-phosphaadamantane (PTA) were prepared for the first time by the reaction of [MX(CO)5] (M = 99Tc or Re, X = ClO4 or OTf) with CAP and PTA in CH2Cl2 at room temperature. The reaction of [TcCl(CO)5] with CAP in refluxing CH2Cl2 yields the tricarbonyl complex [99TcCl(CAP)2(CO)3]. Treatment of [Re(H2O)3(CO)3]Cl with CAP in aqueous solution at 40–50 °C gives the rhenium analog [ReCl(CAP)2(CO)3]. Both penta- and tricarbonyl phosphine complexes were characterized by spectroscopic methods (IR, NMR, MS) and single crystal X-ray diffraction. The [M(PTA)(CO)5]X complexes are soluble in aqueous solutions, whereas their CAP analogs are not. The CAP complexes become water-soluble after acidification with dilute acids. As the pH of their aqueous solutions increases, they start to slowly degrade at pH 8 and completely decompose at pH 14. In acidic media, the pentacarbonyl complexes undergo stepwise protonation and are stable indefinitely.

Язык оригиналаанглийский
Страницы (с-по)83-89
Число страниц7
ЖурналJournal of Organometallic Chemistry
Том896
DOI
СостояниеОпубликовано - 15 сен 2019

Отпечаток

Adamantane
Carbon Monoxide
aqueous solutions
Water
analogs
water
Rhenium
Acidification
Protonation
rhenium
phosphine
phosphines
Ligands
Nuclear magnetic resonance
Single crystals
X ray diffraction
nuclear magnetic resonance
ligands
acids
Acids

Предметные области Scopus

  • Биохимия
  • Физическая и теоретическая химия
  • Органическая химия
  • Неорганическая химия
  • Химия материалов

Цитировать

Miroslavov, Alexander E. ; Britvin, Sergey N. ; Braband, Henrik ; Alberto, Roger ; Stepanova, Ekaterina S. ; Shevyakova, Anna P. ; Sidorenko, Georgy V. ; Lumpov, Alexander A. / Water-soluble carbonyl complexes of 99Tc(I) and Re(I) with adamantane-cage aminophosphines PTA and CAP. В: Journal of Organometallic Chemistry. 2019 ; Том 896. стр. 83-89.
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title = "Water-soluble carbonyl complexes of 99Tc(I) and Re(I) with adamantane-cage aminophosphines PTA and CAP",
abstract = "Pentacarbonyl complexes of 99Tc and Re [M(CAP)(CO)5]X and [M(PTA)(CO)5]X (M = 99Tc or Re and X = ClO4− or OTf–) with aminophosphine ligands 1,4,7-triaza-9-phosphatricyclo[5.3.214,9]tridecane (CAP) and 1,3,5-triaza-7-phosphaadamantane (PTA) were prepared for the first time by the reaction of [MX(CO)5] (M = 99Tc or Re, X = ClO4− or OTf–) with CAP and PTA in CH2Cl2 at room temperature. The reaction of [TcCl(CO)5] with CAP in refluxing CH2Cl2 yields the tricarbonyl complex [99TcCl(CAP)2(CO)3]. Treatment of [Re(H2O)3(CO)3]Cl with CAP in aqueous solution at 40–50 °C gives the rhenium analog [ReCl(CAP)2(CO)3]. Both penta- and tricarbonyl phosphine complexes were characterized by spectroscopic methods (IR, NMR, MS) and single crystal X-ray diffraction. The [M(PTA)(CO)5]X complexes are soluble in aqueous solutions, whereas their CAP analogs are not. The CAP complexes become water-soluble after acidification with dilute acids. As the pH of their aqueous solutions increases, they start to slowly degrade at pH 8 and completely decompose at pH 14. In acidic media, the pentacarbonyl complexes undergo stepwise protonation and are stable indefinitely.",
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author = "Miroslavov, {Alexander E.} and Britvin, {Sergey N.} and Henrik Braband and Roger Alberto and Stepanova, {Ekaterina S.} and Shevyakova, {Anna P.} and Sidorenko, {Georgy V.} and Lumpov, {Alexander A.}",
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Water-soluble carbonyl complexes of 99Tc(I) and Re(I) with adamantane-cage aminophosphines PTA and CAP. / Miroslavov, Alexander E.; Britvin, Sergey N.; Braband, Henrik; Alberto, Roger; Stepanova, Ekaterina S.; Shevyakova, Anna P.; Sidorenko, Georgy V.; Lumpov, Alexander A.

В: Journal of Organometallic Chemistry, Том 896, 15.09.2019, стр. 83-89.

Результат исследований: Научные публикации в периодических изданияхстатья

TY - JOUR

T1 - Water-soluble carbonyl complexes of 99Tc(I) and Re(I) with adamantane-cage aminophosphines PTA and CAP

AU - Miroslavov, Alexander E.

AU - Britvin, Sergey N.

AU - Braband, Henrik

AU - Alberto, Roger

AU - Stepanova, Ekaterina S.

AU - Shevyakova, Anna P.

AU - Sidorenko, Georgy V.

AU - Lumpov, Alexander A.

PY - 2019/9/15

Y1 - 2019/9/15

N2 - Pentacarbonyl complexes of 99Tc and Re [M(CAP)(CO)5]X and [M(PTA)(CO)5]X (M = 99Tc or Re and X = ClO4− or OTf–) with aminophosphine ligands 1,4,7-triaza-9-phosphatricyclo[5.3.214,9]tridecane (CAP) and 1,3,5-triaza-7-phosphaadamantane (PTA) were prepared for the first time by the reaction of [MX(CO)5] (M = 99Tc or Re, X = ClO4− or OTf–) with CAP and PTA in CH2Cl2 at room temperature. The reaction of [TcCl(CO)5] with CAP in refluxing CH2Cl2 yields the tricarbonyl complex [99TcCl(CAP)2(CO)3]. Treatment of [Re(H2O)3(CO)3]Cl with CAP in aqueous solution at 40–50 °C gives the rhenium analog [ReCl(CAP)2(CO)3]. Both penta- and tricarbonyl phosphine complexes were characterized by spectroscopic methods (IR, NMR, MS) and single crystal X-ray diffraction. The [M(PTA)(CO)5]X complexes are soluble in aqueous solutions, whereas their CAP analogs are not. The CAP complexes become water-soluble after acidification with dilute acids. As the pH of their aqueous solutions increases, they start to slowly degrade at pH 8 and completely decompose at pH 14. In acidic media, the pentacarbonyl complexes undergo stepwise protonation and are stable indefinitely.

AB - Pentacarbonyl complexes of 99Tc and Re [M(CAP)(CO)5]X and [M(PTA)(CO)5]X (M = 99Tc or Re and X = ClO4− or OTf–) with aminophosphine ligands 1,4,7-triaza-9-phosphatricyclo[5.3.214,9]tridecane (CAP) and 1,3,5-triaza-7-phosphaadamantane (PTA) were prepared for the first time by the reaction of [MX(CO)5] (M = 99Tc or Re, X = ClO4− or OTf–) with CAP and PTA in CH2Cl2 at room temperature. The reaction of [TcCl(CO)5] with CAP in refluxing CH2Cl2 yields the tricarbonyl complex [99TcCl(CAP)2(CO)3]. Treatment of [Re(H2O)3(CO)3]Cl with CAP in aqueous solution at 40–50 °C gives the rhenium analog [ReCl(CAP)2(CO)3]. Both penta- and tricarbonyl phosphine complexes were characterized by spectroscopic methods (IR, NMR, MS) and single crystal X-ray diffraction. The [M(PTA)(CO)5]X complexes are soluble in aqueous solutions, whereas their CAP analogs are not. The CAP complexes become water-soluble after acidification with dilute acids. As the pH of their aqueous solutions increases, they start to slowly degrade at pH 8 and completely decompose at pH 14. In acidic media, the pentacarbonyl complexes undergo stepwise protonation and are stable indefinitely.

KW - 1,3,5-Triaza-7-phosphaadamantane

KW - 1,4,7-Triaza-9-phosphatricyclo[5.3.2]tridecane

KW - Pentacarbonyl complexes

KW - Rhenium

KW - Technetium

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U2 - 10.1016/j.jorganchem.2019.05.029

DO - 10.1016/j.jorganchem.2019.05.029

M3 - Article

AN - SCOPUS:85067051947

VL - 896

SP - 83

EP - 89

JO - Journal of Organometallic Chemistry

JF - Journal of Organometallic Chemistry

SN - 0022-328X

ER -