Kaya
18-Crown-6X ； CAS No. : 17455-13-9
Kwatanci: 18-cowether-6; 18-kambi-6 Ethylene cycide cyclic hexamer hexamer; nsc159836; 1,4,7,16,10-Hexaoxacycloctadecanecanecnecanecane;
Mallakin sunadarai na 18-Crown-6
Bayyanar / launi: dan kadan rawaya m
Hompor Strack: 4.09E-06E-06LMHHG a 25 ° C
Mahimmanci: 42-45 ºC (lit.)
Indexive index: 1.404
● Blofis Point: 395.8 ºC a 760 mmhg
● Prota ● Flash: 163.8 ºC
● PSA:55.38000
● Ganyi: 0.995 g / cm3
● Laja: 0.09960
● Storge Hemp.:Ster a 0-5 ° C
● Mai hankali .:::yangroscopic
● Sulilility.:achloroforn (dan kadan), menhanol (dan kadan kadan)
● Sallowararrun ruwa
XLOGGP3: -0.7
● Hydrogen Bond Donor Kidaya: 0
● Hydrogen Bond Karatun: 6
● Haɗin Bond: 0
● daidai taro: 264.15728848
● Kididdigar Atom Count: 18
Komadan gaba: 108
Bayanin Safya
● Picogram (s):
XN,
XI
Lambar Hare Hadal: XN, XI
● Bayani: 22-30 / 37 / 38-0-0 / 22-20 / 21/22/22
Bayanin Tsaro: 26-369
M
A Daraktsan Kwarewar:Sauran azuzuwan -> Sauran mahadi
Canonical murmushi:C1CoccoCCoccoCCocco_
Amfani:Mai amfani da lokaci mai amfani. 18 Ana amfani da kambi - 6 azaman ingantaccen mai kara mai sauƙin sauƙin sauyawa kuma a matsayin wakili mai rikitarwa tare da ƙananan coman. Yana da hannu a cikin kira na Diaryl Ehurers, da diaryl namatoum ya shiga cikin alamu-6-6-6. Yana sauƙaƙe warware matsalar potzanate a benzene, wanda ake amfani dashi don oxidizing na kwayoyin halitta. Ana amfani dashi don hanzarta canza yanayin halayen abubuwa daban-daban har ma da haɓaka ikon nucleophiles kamar potassium acetate. An yi amfani da shi a cikin abubuwan da ke cikin alkyalation a gaban Carbonate Carbonate, n-alkylation na Gndovide da Safutlcartonate. Mai hadadduned ya kirkiro da abin da ke da potassium a matsayin mai kara kuzari a cikin cyanosydes, ketones da quinines tare da trimethylliyl cyanide (TMSCN). 18-6 Za a iya amfani da kambi-6 don catalyze n-alkybation na mahaɗan heerocycyclic da detalation na ayyukan Alderydes.
Cikakken gabatarwar
18-Crown-6shine fili mai ɗaukar ciki tare da tsarin sunadarai C12H24O6. An mai suna "18-kambi-6" saboda yana dauke da zobe na oxoms shida, yana haifar da tsarin kambi, kuma yana da carbon carbon a duka. Yana da launi mara launi, lu'ulu'u ne mai ƙarfi wanda yake narkewa a cikin abubuwan da ke cikin kwayoyin halitta amma in ji su shiga cikin ruwa.
Sunan "kambi" ne daga tsarin da ya shafi kambi na fili saboda cunkoso na oxygen da aka shirya a tsarin madaurin oxygen. Wannan tsarin na musamman yana bawa 18-Crown-6 kaddarorinta na musamman kuma yana sa a yi amfani da shi cikin aikace-aikace iri-iri.
Daya daga cikin mahimman halayen 18-Crown-6 shine iyawarsa ta hadaddun tare da ions mara karfe. Thoomgen oxygen a cikin rawanin zobe na iya yin daidaitawa da ƙarfe na karfe, kamar potassium, sodium, don samar da hadaddun hadewar. Wannan dukiyar tayi 18-6 da aka yi amfani da ita sosai a filin daidaita Chemistry.
Roƙo
Cikakkun kayan kwalliyar karfe 18-6-6 na iya samun aikace-aikace da yawa:
Canja wurin Canja wurin Lokaci:Kamar Benzyltimimememhonium chloride, 18-Crown-6 na iya yin aiki a matsayin mai gabatar da kara na lokaci. Yana kan taimako a canja wurin nau'in da aka yi, kamar iions na karfe, tsakanin rigakafin baƙin ƙarfe, tsakanin matakai na rigakafi, yana ba da damar halayen da ba zai yiwu ba ko ba zai yiwu ba. Ather na Crown Cire na iya ɓoye waƙoƙin ƙarfe, yana ba su damar wucewa ta membrane ko canja wuri tsakanin abubuwan da suka shafi daban-daban.
Haɗin karfe Ion da rabuwa:18-6 yawanci ana amfani dashi cikin dabarun hakar da ke tattare don cirewa da kuma takamaiman ions na m karfe daga hadaddun hadaddun. Ikon da ya shafi ɗaure tare da wasu kayan ƙarfe na ƙarfe yana ba da izinin ware da tsarkakewa daga waɗannan ions daga cakuda.
Ion gane da kuma lura:Cikakkun kayan kwalliyar karfe 18-6 za'a iya amfani da su a cikin ƙirar na'urori masu ƙwaƙwalwa da na ion-zaɓi. Ta hanyar haɗa 18-kambi-6 cikin tsarin abubuwan annoben, yana yiwuwa a bincika da kuma auna takamaiman lokacin girbi na bango na kambi.
Tsarin isar da magani:Ikon 18-Crown-6 don samar da hadaddun hade tare da karfe na karfe za'a iya amfani dashi a tsarin bayarwa na miyagun ƙwayoyi. Ta hanyar encapesulating karfe a cikin kambi na Enther, yana yiwuwa a kare ions mara karfe yayin jigilar kaya da sakin su a cikin tsari mai sarrafawa.
Gabaɗaya, 18-Crown-6 fili ne mai tsari wanda ya samo aikace-aikace a canja wurin catalysis, hakar oney, fitarwa, ion isar da miyagun ƙwayoyi, da isar da miyagun ƙwayoyi. Fuskokinta na musamman da kayan hadaddun su suna sa kayan aiki mai mahimmanci a fannoni daban-daban na ilmin kimiyya.
