2024 Tus sau: Elizabeth Oswald | [email protected]. Kawg hloov kho: 2024-01-13 00:07
Nyob rau hauv molecular orbital txoj kev xav, electrons nyob rau hauv ib lub molecule tsis raug muab rau ib tug neeg cov tshuaj bonds ntawm atoms, tab sis raug kho raws li txav nyob rau hauv lub cuam tshuam ntawm lub atomic nuclei nyob rau hauv tag nrho cov molecule.. … Molecular orbital theory thiab valence bond theory yog lub hauv paus kev xav ntawm quantum chemistry.
Cov ntsiab lus tseem ceeb ntawm molecular orbital txoj kev xav yog dab tsi?
Key Points
The Aufbau txoj cai hais tias orbitals tau ntim nrog lub zog qis tshaj ua ntej. Lub hauv paus ntsiab lus tsis suav nrog Pauli hais tias qhov siab tshaj plaws ntawm cov hluav taws xob nyob hauv lub orbital yog ob, nrog rau qhov sib txawv.
G thiab U yog dab tsi hauv molecular orbital theory?
Orbitals uas tsis hloov pauv los ntawm kev ua haujlwm ntawm kev hloov pauv (yog qhov sib luag) tau sau npe nrog subscript g, thaum cov uas tau hloov pauv hauv kev kos npe (yog antisymmetric) tau sau npe u. Cov cim g thiab koj yog los ntawm German lo lus "gerade" thiab "ungerade" lub ntsiab lus "txawm" thiab "khob" feem.
SP mixing in mot yog dab tsi?
s-p sib tov tshwm sim thaum lub s thiab p orbitals muaj zog zoo sib xws. Thaum ib qho p orbital muaj ib khub ntawm electrons, txoj cai ntawm kev sib txuas cov electrons nce lub zog ntawm lub orbital. Yog li 2p orbitals rau O, F, thiab Ne muaj zog dua li 2p orbitals rau Li, Be, B, C, thiab N.
Vim li cas thiaj tsis muaj SP sib xyaw hauv O2?
nyob rau hauv O2 tsis muaj s-p tov yog vim li cas yuavoxygen sib xyaw nws cov s thiab p orbitals thaum nws txuas nrog Carbon. Kuv xav tias lawv tawm hauv cov pa oxygen unhybridized. Yog li, piv txwv li, lawv tab tom sib xyaw (ntxiv thiab rho tawm) cov pa roj carbon sp orbital nrog oxygen s orbital los ua 1σ thiab 2σ molecular orbitals hauv koj daim duab MO.
Pom zoo:
Thaum twg electron-pair geometries tib yam li cov qauv molecular?
Kauj Ruam 4: Lub molecular geometry piav qhia txoj haujlwm nkaus xwb ntawm atomic nuclei (tsis yog ib leeg electron khub) ntawm cov molecule (lossis ion). Yog tsis muaj ib leeg electron khub ntawm lub hauv paus atom, khub electron thiab molecular geometries yog tib yam.
Puas molecular homology txhawb evolution?
Molecular biology Zoo li cov qauv qauv, zoo ib yam ntawm cov roj ntsha molecules tuaj yeem cuam tshuam txog kev sib koom evolutionary poj koob yawm txwv. Nyob rau theem pib tshaj plaws, tag nrho cov kab mob nyob sib koom: … Tib lub tsev molecular blocks, xws li amino acids.
Lub mis molecular ntawm glutaric acid yog dab tsi?
Glutaric acid yog cov organic compound nrog cov mis C₃H₆(COOH)₂. Txawm hais tias qhov cuam tshuam "linear" dicarboxylic acids adipic thiab succinic acids yog dej-soluble tsuas yog ob peb feem pua ntawm chav sov, cov dej-solubility ntawm glutaric acid yog tshaj 50%.
Puas glutaric acid puas yog molecular compound?
Glutaric acid yog cov organic compound nrog cov mis C 3 H 6 (COOH) 2 . Txawm hais tias qhov cuam tshuam "linear" dicarboxylic acids adipic thiab succinic acids yog dej-soluble tsuas yog ob peb feem pua ntawm chav sov, cov dej-solubility ntawm glutaric acid yog tshaj 50% (w / w).
Tus kws tshuaj molecular yog dab tsi?
Molecular biology yog ceg ntawm biology uas kawm txog lub hauv paus molecular ntawm kev ua haujlwm lom neeg. Cov khoom muaj sia yog tsim los ntawm cov tshuaj ib yam li cov khoom tsis muaj sia, yog li tus kws tshawb fawb molecular tshawb fawb seb cov molecules cuam tshuam nrog ib leeg hauv cov kab mob muaj sia los ua lub luag haujlwm ntawm lub neej.
