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Payvasthoi khelati

Payvasthoi khelati, pay­vasthoi changolshakl, pay­vasthoi dokhili komplek­si, yak sinfi makhsusi payvasthoi kompleksiro guyand, ki dar onho atomi komplekshosilkunanda (markazi) bo du va az on ziyod atomi li­gand (adlend)-hoi yakkhela payvast sh uda as t. Misoli ravshani Payvasthoi khelati asetilasetonati berilliy ba hisob me­ravad.

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Dar in modda khar yak ligand (ioni asetilaseton) bo atomi berilliy (komplekshosilkunanda) ba vositai du band — Be—S (ioni) va Be….O (kovalenti) payvast shudaast. Dar natija atomi berilliy guyo ba holi­li har du ligand daromada raftaast. Baroi hamin ham chunin payvastho Payvasthoi khelati nom giriftaand. Onho nisbat ba ob dar halkunandahoi organiki khubtar khal meshavand va rangi khos dorand. Khlorofill va gemoglobin, ki muhimtarin payvasthoi hayot ba shumor meravand, az qabili Payvasthoi khelatiand. Nigared niz Kompleksonometriya.

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MUGJAPAYVAND

MUGJAPAYVAND, yak navi payvand; ba niholi khasak mugjai navi behtarini darakhti mevaro payvand mekunand. Nigared …