𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Investigation of complex structures of a new 2-hydroxyethyl ester of Monensin A with Mg2+, Ca2+, Sr2+, Ba2+ cations using electrospray ionization mass spectrometry and semiempirical PM5 methods

✍ Scribed by Adam Huczyński; Piotr Przybylski; Grzegorz Schroeder; Bogumił Brzezinski

Publisher
Elsevier Science
Year
2007
Tongue
English
Weight
789 KB
Volume
829
Category
Article
ISSN
0022-2860

No coin nor oath required. For personal study only.

✦ Synopsis

A new 2-hydroxyethyl ester of Monensin A (MON2) was synthesized and its ability to complex formation with divalent cations was studied by the ESI mass spectrometry and PM5 semiempirical calculations. The ESI-MS spectra indicated that MON2 forms stable 1:1 complexes with the divalent cations studied. Additionally also complexes of MON2 with divalent cations and perchlorate anions were also detected. With increasing cone voltage values the fragmentation process of the complexes with the formation of respective fragmentary cations occurred. The structures of the complexes are discussed in detail on the basis of conformational analysis together with the PM5 semiempirical calculations.

📜 SIMILAR VOLUMES

Spectroscopic, mass spectrometry, and se
Spectroscopic, mass spectrometry, and semiempirical investigations of a new 2-(2-methoxyethoxy)ethyl ester of Monensin A and its complexes with monovalent cations
✍ Adam Huczyński; Daniel Łowicki; Bogumil Brzezinski; Franz Bartl 📂 Article 📅 2008 🏛 Elsevier Science 🌐 English ⚖ 941 KB

A new 2-(2-methoxyethoxy)ethyl ester of Monensin A (MON7) has been synthesized and its capability of complex formation with Li + , Na + , and K + cations has been studied by ESI MS, 1 H and 13 C NMR, FT-IR, and PM5 semiempirical methods. ESI mass spectrometry indicates that MON7 forms complexes with

Spectroscopic, mass spectrometry and sem
Spectroscopic, mass spectrometry and semiempirical investigation of a new 2-methoxyethyl ester of monensin A and its complexes with Li+, Na+ and K+ cations
✍ Adam Huczyński; Daniel Łowicki; Bogumil Brzezinski; Franz Bartl 📂 Article 📅 2008 🏛 Elsevier Science 🌐 English ⚖ 797 KB

A new 2-methoxyethyl ester of monensin A (MON5) has been synthesized and its capability of complex formation with Li + , Na + and K + cations has been studied by ESI MS, 1 H and 13 C NMR, FT-IR and PM5 semiempirical methods. ESI mass spectrometry indicates that MON5 forms complexes with Li + , Na +

Multinuclear magnetic resonance, electro
Multinuclear magnetic resonance, electrospray ionization–mass spectroscopy, and parametric method 5 studies of a new derivative of gossypol with 2-thiophenecarbohydrazide as well as its complexes with LI+, Na+, K+, RB+, and Cs+ cations
✍ Piotr Przybylski; Wojciech Schilf; Weronika Lewandowska; Bogumil Brzezinski 📂 Article 📅 2006 🏛 Wiley (John Wiley & Sons) 🌐 English ⚖ 496 KB 👁 1 views

## Abstract A new derivative of racemic gossypol with 2‐thiophenecarbohydrazide (GHHT) and its complexes with monovalent cations have been synthesized and studied by electrospray ionization–mass spectroscopy (ESI‐MS), multinuclear nuclear magnetic resonance (NMR), as well as by the Parametric Metho