Mgbanaka silicon 5 na-esi ísì ụtọ arụpụtara n'ikpeazụ

Gafere Oche ụlọ nyocha: Ihe ọ pụtara n'ezie

Nkwekọrịta nke mgbanaka silicon aromatic na-emepe ụzọ nyocha nke na-agafe karịa ọchịchọ mmụta agụmakwụkwọ. Ogwu aromatic nke silicon nwere ike igosipụta akụrụngwa eletrọnịkị dị iche na analog nke carbon ha, yana ngwa nwere ike gbasaa ọtụtụ ụlọ ọrụ bara uru.

Nchọpụta nke aromaticity silicon niile abụghị naanị tinye mgbakwunye ọhụrụ na katalọgụ ahụ - ọ na-ewepụta otu klas ọhụrụ nke ụkpụrụ ụlọ. Ngwa ọ bụla e wuru na carbon aromaticity n'ime afọ 160 gara aga ugbu a nwere ogbo dabere na silicon na-eche ka enyocha ya, nke ọ bụla nwere ihe pụrụ iche nke eletrọnịkị, ngwa anya na nke catalytic

Ajụjụ Na-akpata: Silicon Metallocenes na Horizon

Ma eleghị anya, atụmanya na-akpali akpali ozugbo bụ ikike nke metallocenes dabeere na silicon. Carbon's cyclopentadienide anion na-etolite ogige Sanwichi nwere ihe fọrọ nke nta ka ọ bụrụ igwe mgbanwe ọ bụla, na metallocenes ndị a bụ ihe dị mkpa na-akpalite kemịkalụ polymer. Ziegler-Natta na metallocene catalysts ọnụ na-akwado mmepụta nke ihe karịrị 100 nde tọn polyethylene na polypropylene kwa afọ - ahịa ruru ihe ruru ijeri $200.

Jikwaa mgbagwoju anya nke ọrụ nyocha ọgbara ọhụrụ

Ikpo okwu dị kaMewayz na-ekwu kpọmkwem mgbagwoju anya arụ ọrụ a. Site na modul 207 jikọtara ọnụ na-agbasa CRM, akwụkwọ ọnụahịa, njikwa oru ngo, HR, na nyocha, Mewayz na-enye ndị otu na-eme nchọpụta otu usoro iji jikwaa akụkụ azụmaahịa nke ihe ọhụrụ. Kama ijikọ akwụkwọ akụkọ, agbụ email, na ngwa ngwanrọ kwụsịrị, ndị otu nwere ike soro usoro ihe omume dị mkpa, jikwaa akwụkwọ ọnụahịa ndị na-ebubata ngwaahịa maka ndị na-ahụ maka ụlọ nyocha, na-ahazi nhazi otu, wee wepụta akụkọ gbasara ego nke ụlọ ọrụ na-enye ego na-achọ - niile sitere n'otu ikpo okwu. Maka ndị otu 138,000+ na-eji Mewayz eme ihe n'ụwa niile, ụdị njikwa arụ ọrụ nke etiti a pụtara obere oge na nchịkwa nchịkwa yana oge na-agbanye oke nke ihe sayensị nwere ike nweta.

Ihe na-abịa na-esote: Tebụl oge a nwere ihe nzuzo ndị ọzọ

Mmekọrịta nke ọma nke mgbanaka aromatic silicon niile na-ewelite ajụjụ ozugbo: kedu maka ihe ndị ọzọ Group 14? Germanium, tin, na ndu niile na-ekekọrịta nhazi silicon anọ-valence-electron, nke ọ bụla na-ewepụtakwa ihe ịma aka nke ya maka inweta sistemu mgbanaka aromatic kwụsiri ike. A na-ewere mgbanaka aromatic Germanium ugbu a dị ka ebumnuche dị nso na nso nso a, nyere ọnọdụ etiti germanium n'etiti silicon na ihe ndị dị arọ karị.

E wezụga Group 14, echiche nke aromaticity ka agbatịworị na ụyọkọ boron (boranes na carboranes na-egosipụta aromaticity akụkụ atọ), mgbanaka phosphorus, na ọbụna sistemụ aromatic niile dị ka Al4²⁻ tetraanion nke mbụ e ji mara na 2001. Ọhụrụ ọ bụla na-enweta aromaticity na-emepụta ihe na-emepụta ihe ndị na-emepụta ihe na-emepụta ihe na-emepụta chemist. molecular ụlọ blocks nwere ihe onwunwe enweghị ike imegharị ya site na carbon dabeere naanị.

Nkwekọrịta nke pentasilacyclopentadienide na-akwadokwa omume sara mbara na kemịkalụ ọgbara ọhụrụ: nyocha usoro nke ihe ndị bụ isi otu maka ijikọ motifs echekwara na mbụ maka carbon. N'ime afọ iri abụọ gara aga, ogige ndị kwụsiri ike nwere silicon-silicon triple bonds, phosphorus-phosphorus triple bonds, na ọbụna boron-boron agbụ atọ emechaala. Nke ọ bụla n'ime nchọpụta ndị a bu ụzọ ọtụtụ iri afọ nke mgbalị ndị dara ada na enweghị obi abụọ, na nke ọ bụla emepeela ụzọ ọhụrụ maka imepụta ihe.