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Sintesi e attività biologica dei complessi dei metalli alcalino-terrosi

Sintesi e attività biologica dei complessi dei metalli alcalino-terrosi

Katariya Kanubhai / Mehul Sadhu / Rohit Patel

82,91 €
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Editorial:
KS OmniScriptum Publishing
Año de edición:
2025
Materia
Química
ISBN:
9786209001888
82,91 €
IVA incluido
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Per spiegare le formule e le strutture dei composti complessi o complessi, formati da sali di metalli di transizione con specie molecolari come l’ammoniaca, Werner coniò i termini valenza primaria e valenza secondaria. Questi concetti sono ancora validi oggi, tranne per il fatto che il termine 'stato di ossidazione' ha sostituito 'valenza primaria' e il termine 'numero di coordinazione' ha sostituito 'valenza secondaria'. Werner aveva riconosciuto che un sale di metallo di transizione poteva formare un composto complesso in cui lo ione metallico si legava a una serie di gruppi che non dovevano necessariamente essere gli anioni contrapposti originariamente presenti nel sale. L’orientamento nello spazio di questi gruppi legati al metallo avrebbe portato il complesso ad avere una particolare struttura geometrica. I composti di coordinazione hanno sempre rappresentato una sfida per la chimica inorganica. Gli scienziati che si sono occupati di coordinazione dei composti sono Kooser, Lewis, Sidgwick, ecc.

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