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Payvasthoi organikii litiyi

Payvasthoi organikii litiy, payvasthoi khimiyavie, ki dar molekulaashon bandi litiy-karbon (Li—S) dorand, chunonchi, R—Li (R— radikal). Payvasthoi organikii litiyi alifaty moddahoi kristalli (R=CH3,G2H5 var.), moei reliz (R = n — S3N7, n — S4NE va r.) yo moddai zudgudozi mummonand buda, dar karbogidridho va efirho nagz hal meshavand. Payvasthoi organikii litiyP. o. l.-i aromaty moddanoi kristallii safed yo zardtobn dar karbogid- ridu efirno halnashavandaand.

Payvasthoi organikii litiyro az litiy va galogenalkilho (yo galogeparilho) dar muhiti karbogidrid yo efir hosil mekunand: RX + 2I RLi -j- LiX. Payvasthoi organikii litiy khele faol buda, az tasiri oksigen, na­mi va gazi karbonat tez vayron me­shavand. Binobar in bo onho dar muhiti gazhoi inerti yo nitrogeni khushk kor kardan lozim ast. Dar sanoat Payvasthoi organikii litiyro hangomi hosil kardani kauchukhoi butadiyoni va izopreni hamchun katalizator isti­foda mebarand.

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MUGJAPAYVAND

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