Volume 40 - Issue 3 - 219 - 225

Synthesis, Spectroscopic and Thermal Characterization of Non-Metal Cation (NMC) Pentaborates Salts Containing Cations Derived From Histidine and Arginine

Katyonik Histidine ve Arjinin Türevleri İçeren Metal Katyonsuz (NMC) Pentaborat Tuzlarının Sentezi, Spektroskopik ve Termal Karakterizasyonu

The new non-metal cation (NMC) pentaborate structures of cationic histidine and arginine aminoacids were synthesized and characterized using spectroscopic ( 11B NMR and IR) methods. Their thermal properties have been investigated by TG/DrTG-DTA. The histidine NMC pentaborate, [C6H10N3O2][B5O6(OH)4].4H2O and the arginine pentaborate, [C6H13N4O2][B5O6(OH)4]2.3H2O are formulated with 4 and 3 waters of crystallization, respectively. The histidine pentaborate is more stable than the arginine pentaborate to thermal decomposition, but both decompose thermally via initial dehydration followed by loss of amino acid fragments to afford glassy B2O3

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