Qhov sib txawv tseem ceeb ntawm Schiff puag thiab Schiff's reagent yog lub sij hawm Schiff puag yog hais txog ob qho tib si ketamines lossis theem nrab aldimines, whereas lub sij hawm Schiff's reagent yog hais txog cov reagent siv los ntsuas aldehydes thiab ketones.
Schiff puag thiab Schiff's reagent tau raug hu ua tus kws tshawb fawb Hugo Schiff. Cov ntsiab lus no yog siv hauv Schiff kuaj, uas kuaj pom aldehydes thiab ketones hauv cov qauv muab. Ob lo lus no yog siv los sau npe rau ib pawg ntawm cov organic compounds.
Schiff Base yog dab tsi?
Schiff puag yog cov organic compound uas muaj cov tshuaj formula R2C=NR'. Ntawm no, R pawg tsis sib npaug rau hydrogen atoms; lawv yog pawg alkyl lossis aryl pawg. Cov tebchaw uas poob rau hauv qeb ntawm Schiff puag yog nyob rau hauv sub-class ntawm imines. Cov no tuaj yeem yog ketamines theem nrab lossis theem nrab aldimines. Feem ntau, peb siv lub sij hawm Schiff puag rau hom tshuaj uas tuaj yeem ua raws li ligands thaum tsim kev sib koom ua ke nrog cov hlau ions. Txawm hais tias qee qhov complexes muaj nyob ua cov khoom ntuj tsim, xws li. corrin, feem ntau Schiff hauv paus yog dag.
Daim duab 01: Cov qauv dav dav ntawm Schiff Base
Thaum xav txog kev sib txuas ntawm Schiff puag, peb tuaj yeem tsim nws los ntawm nucleophilic ntxiv ntawm aliphatic lossis aromatic amine thiab carbonyl compound xws li aldehyde lossis ketone. Cov tshuaj tiv thaiv no ua rau hemiaminal peb tuaj yeem ua lub cev qhuav dej nrog, los tsim ib qho imine.
Schiff's Reagent yog dab tsi?
Schiff's reagent yog cov tshuaj reagent uas yog siv los kuaj aldehydes thiab ketones. Nws yog cov kua uas muaj fuchsin dye. Cov xim nyob rau hauv cov tshuaj no yog decolourized nrog sulfur dioxide. Thaum peb siv cov reagent no hauv Schiff kuaj, peb tuaj yeem pom tias cov xim liab ntawm cov reagent rov qab yog cov qauv muaj aldehydes thiab yog tias nws muaj ketones tab sis tsis muaj aldehydes, cov xim liab tsis tuaj yeem pom. Txawm li cas los xij, aliphatic ketones thiab aromatic aldehydes zoo li rov qab xim liab maj mam.
Daim duab 02: Tus Qauv ntawm Fuchsin Dye
Feem ntau, Schiff's reagents yog xim vim qhov nqus ntawm qhov pom wavelengths los ntawm nws lub hauv paus quinoid qauv. Thaum sulfonation, reagent tau decolourized. Ntawm no, lub hauv paus carbon atom ntawm cov dye undergoes sulfonation los ntawm sulfurous acid los yog nws conjugate puag. Cov tshuaj tiv thaiv ntxiv ntawm aldehydes thiab Schiff's reagent tsim ntau yam tshuaj tiv thaiv.
Qhov txawv ntawm Schiff Base thiab Schiff's Reagent yog dab tsi?
Cov ntsiab lus Schiff puag thiab Schiff's reagent yog siv hauv kev tshuaj ntsuam chemistry. Qhov sib txawv tseem ceeb ntawm Schiff puag thiab Schiff's reagent yog lub sij hawm Schiff puag yog hais txog ob qho tib si ketimines lossis theem nrab aldimines, thaum lub sij hawm Schiff's reagent yog hais txog cov reagent siv los kuaj aldehydes thiab ketones. Ntxiv mus, Schiff lub hauv paus yog ib qho organic molecule, whereas Schiff's reagent yog ib qho tshuaj uas muaj fuchsin dye.
Hauv qab infographic tabulates qhov sib txawv ntawm Schiff puag thiab Schiff's reagent.
Summary – Schiff Base vs Schiff's Reagent
Cov ntsiab lus Schiff puag thiab Schiff's reagent yog siv hauv kev tshuaj ntsuam chemistry. Qhov sib txawv tseem ceeb ntawm Schiff puag thiab Schiff's reagent yog lub sij hawm Schiff puag yog hais txog ob qho tib si ketimines lossis theem nrab aldimines, thaum lub sij hawm Schiff's reagent yog hais txog cov reagent siv los kuaj aldehydes thiab ketones. Ntxiv mus, lub hauv paus Schiff yog ib qho organic molecule, whereas Schiff's reagent yog ib qho tshuaj uas muaj fuchsin dye.
