Qhov Tseem Ceeb Qhov Sib Txawv - Kev Sib Koom Tes vs Organometallic Compound
Kev sib koom ua ke sib txuas thiab cov khoom siv organometallic yog cov sib xyaw ua ke. Qhov sib txawv tseem ceeb ntawm kev sib koom ua ke thiab cov organometallic compound yog tias kev sib koom ua ke muaj kev sib koom tes covalent bonds whereas organometallic compounds muaj hlau-carbon bonds.
Kev sib koom ua ke yog cov sib xyaw ua ke ntawm cov hlau ion ncig los ntawm cov molecules lossis ions nplua nuj nrog cov hluav taws xob. Cov khoom nyob ib puag ncig no hu ua ligands. Organometallic compounds yog cov sib xyaw ua ke uas muaj hlau-Carbon covalent bonds. Yog tias muaj tsawg kawg yog ib daim ntawv cog lus hlau-carbon, qhov sib xyaw ntawd raug suav tias yog ib qho organometallic compound.
Kev Sib Koom Tes yog dab tsi?
Kev sib koom ua ke yog cov sib xyaw ua ke uas muaj cov hlau atoms lossis ions ncig los ntawm cov khoom siv hluav taws xob nplua nuj lossis ions hu ua ligands. Cov ligands yog sib txuas rau cov hlau atom (los yog ion) ntawm kev sib koom tes covalent bonds. Ib qho kev sib koom ua ke covalent daim ntawv cog lus yog tsim thaum ib leeg electron khub ntawm ib lub ligand raug pub rau khoob d orbitals ntawm cov hlau atom lossis hlau ion. Feem ntau ntawm lub sijhawm, kev hloov pauv hlau atoms dhau los ntawm hom kev sib xyaw no vim tias cov atoms no nplua nuj nrog cov khoob d atomic orbitals.
Daim duab 01: Ib qho hlau-EDTA Complex yog kev sib koom ua ke
Kev sib koom ua ke tuaj yeem ua rau nruab nrab (Co(NH3)Cl3), zoo them ([Nd(H 2O)93) los yog tus nqi tsis zoo ([UF8 4). Cov sib xyaw ua ke raug them tseem hu ua complex ions. Kev sib koom ua ke sib txawv muaj cov qauv sib txawv hu ua geometry. Lub geometry ntawm kev sib koom ua ke yog txiav txim siab los ntawm kev sib koom tes ntawm cov complex. Kev sib koom tes yog tus lej ntawm ligands sib txuas rau hauv nruab nrab hlau atom lossis ion.
- Kev sib koom tus lej=2 yog cov kab zauv kab zauv
- Kev sib koom ua ke=3 yog lub trigonal planar geometry
- Tus lej sib koom=4 yog tetrahedral lossis square planar geometry
- Kev sib koom tus lej=5 yog trigonal bipyramidal geometry
- Kev sib koom tus lej=6 yog lub octahedral geometry
- Kev sib koom tus lej=7 yog lub pentagonal bipyramidal geometry
- Kev sib koom tes=8 yog lub square antiprismatic geometry
Dab tsi yog Organometallic Compound?
Organometallic compounds yog cov sib xyaw ua ke uas Hlau-Carbon covalent bonds muaj nyob. Cov tebchaw no muaj covalent bonds ntawm carbon thiab hlau atoms. Txawm li cas los xij, muaj qee qhov kev zam thiab; hlau-cyano bonds tsis suav hais tias yog organometallic bonds. Cov hlau carbonyl complexes raug suav hais tias yog organometallic compounds.
Cov hlau koom nrog hauv kev tsim cov tshuaj lom neeg cov tshuaj lom neeg tuaj yeem yog cov hlau alkali, alkaline ntiaj teb hlau, hloov hlau lossis tuaj yeem ua cov hlau xws li Boron. Qee qhov piv txwv rau cov tshuaj organometallic yog Grignard reagent muaj xws li Lithium (Li) lossis Magnesium (Mg), ferrocene, tetracarbonyl nickel, thiab lwm yam. Boron yog metalloid, tab sis nws kuj tsim cov organometallic compounds xws li organoborane compounds.
Daim duab 02: Ferrocene
Organometallic compounds yog qhov zoo ntawm nucleophilic carbon atoms. Qhov ntawd yog vim qhov electronegativity ntawm cov hlau yog tsawg heev piv rau carbon. Yog li, cov hlau atom tuaj yeem tsim cov cation yooj yim, los ntawm kev muab cov khoom siv hluav taws xob rau cov pa roj carbon atom. Tam sim no, carbon atom yog nplua nuj nrog electrons, yog li ua tau raws li ib tug nucleophile. Cov pa roj carbon nucleophile no tuaj yeem tawm tsam electrophilic carbon atoms thiab tsim cov Carbon-Carbon bonds tshiab.
Kev sib raug zoo ntawm Kev Sib Koom Tes thiab Organometallic Compound yog dab tsi?
Qee qhov sib koom ua ke muaj cov hlau ions ncig los ntawm cov organic ligands. Yog tias cov ligands raug khi rau cov hlau atom ntawm heteroatoms xws li oxygen thiab nitrogen, ces qhov sib xyaw yog suav tias yog kev sib koom ua ke. Tab sis yog tias muaj kev sib txuas ncaj qha ntawm cov pa roj carbon atom thiab cov hlau atom, ces nws raug suav tias yog ib qho organometallic compound
Dab tsi yog qhov txawv ntawm Kev Sib Koom Tes thiab Organometallic Compound?
Kev sib koom ua ke vs Organometallic Compound |
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| Kev sib koom ua ke yog cov sib xyaw ua ke uas muaj cov hauv nruab nrab hlau atoms lossis ions ncig los ntawm cov khoom siv hluav taws xob nplua nuj lossis ions hu ua ligands. | Organometallic compounds yog cov sib xyaw ua ke uas Hlau-Carbon covalent bonds muaj nyob. |
| Tshuaj Bonding | |
| Kev sib koom ua ke muaj kev sib koom tes covalent bonds ntawm cov hlau atoms thiab ligands. | Organometallic compounds muaj tsawg kawg yog ib qho hlau-carbon covalent daim ntawv cog lus. |
| Kev sib koom ua ke muaj cov hlau atoms lossis ions thiab electron-nplua nuj ligands. | Organometallic compounds muaj hlau atoms thiab ib feem ntawm cov organic molecule. |
| Yuav luag tag nrho cov kev sib koom ua ke muaj xim zoo nkauj raws li lub xeev oxidation ntawm lub hauv paus hlau atom. | Organometallic compounds tsis tseem ceeb xim. |
Summary – Coordination Compound vs Organometallic Compound
Kev sib koom ua ke yog cov sib txuas ua ke ntawm cov hlau atom lossis hlau ion ncig los ntawm cov hluav taws xob nplua nuj ligands. Cov ligands yog sib txuas rau cov hlau atom ntawm kev sib koom tes covalent bonds. Organometallic compounds yog cov sib txuas ua ke uas muaj tsawg kawg yog ib qho hlau-Carbon daim ntawv cog lus. Qhov sib txawv ntawm kev sib koom ua ke thiab cov organometallic compound yog tias kev sib koom ua ke muaj kev sib koom tes covalent bonds whereas organometallic compounds muaj hlau-carbon bonds.
