Таджикистан – Энциклопедия на таджикском языке КИТОБАМ

Payvasthoi kompleksi, payvasthoi koordinasion i, yak sinfi makhsusi payvasthoi khimiyaviero guyand, ki dar natijai ba yagon ion (yo atom) payvast shudani molekulahoi neytrali yo ionhoi digar hosil meshavand. Payvasthoi kompleksi sokhti khose dorand. Masalan, payvasti az reak­siyai- Pt£l< + 2KS1 KalPtCle] hosilshuda sokhti zerin dorad: Yadroi Payvasthoi kompleksi yo khud …

Payvasthoi koordinatsioni, nigared Payvasthoi kompleksi.

Payvasthoi organikii alyuminiy, payvasthoi khimiyavie, ki dar molekulaashon bandi alyumi­niy-karbon (A1—S) dorand. Payvasthoi organikii alyuminiy purra RjAl va nopurra R2A1X yo RAlXj meshavand (dar in 40 R—SN3, S2Nb, SvN8 va sh X — galogen, OR yo N). Alyuminiytrialkilho RjAl (R— —SNz, CfHs va r.) moddahoi moei berang buda, az tasiri …

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 …

Payvasthoi organikii metallho, payvastnoi khimiyavie, ki dar onho atomi yagon metall bo ato­mi karbon bevosita payvast shudaast. Payvasthoi organikii metallho az rui bandi metall karbon (M — S) ba du guruh chudo me­shavand: 1) payvasthoi organikii elementhoi basit (oddi) yo khud gayri mutavassit va mutavassit (bo karbon bandi oddi — …