Cov qauv hauv zos ntawm hydrogen-bonded molecules ntawm methylamine ua pov thawj tias yog qhov chaw ntim ntau vim qhov loj ntawm cov saw ceg. Methanethiol molecules kuj tau ua pov thawj los tsim hydrogen bonds ua cov pawg me me.
Puas methylamine tsim hydrogen bonds nrog dej?
Primary amines
Txawm li cas los xij, qhov kub ntawm methylamine yog -6.3 ° C, whereas ethane's boiling point yog qis dua ntawm -88.6 ° C. Yog vim li cas rau cov ntsiab lus kub kub ntawm thawj amines yog tias lawv tuaj yeem tsim cov ntawv cog lus hydrogen nrog ib leeg nrog rau van der Waals dispersion rog thiab dipole-dipole kev sib cuam tshuam.
Ntau npaum li cas hydrogen bonds tuaj yeem ua tau methylamine?
Methanol, methylamine, thiab methanethiol muaj nyob hauv cov kua hauv lub xeev ntawm qhov kub ntawm 161.7 °, 88 °, thiab 129.2 ° C, nrog cov ntsiab lus kub ntawm 64.7 °, 6 °, thiab 6.2 ° C, raws li. Raws li txoj cai, tag nrho peb hom molecules yuav muaj peb muaj zog hydrogen bonds.
Puas amine tsim hydrogen bonds?
Thawj thiab theem nrab amines yog ob qho tib si hydrogen daim ntawv tso nyiaj pub dawb thiab txais, thiab lawv tau yooj yim tsim hydrogen bonds nrog dej. Txawm tias tertiary amines yog soluble nyob rau hauv dej vim hais tias cov nonbonded electron khub ntawm lub nitrogen atom yog ib tug hydrogen daim ntawv cog lus txais ntawm ib tug hydrogen atom ntawm dej.
Clos tsim cov ntawv cog lus hydrogen?
Puas chlorine tsim Hydrogen Bonds? Txawm hais tias chlorine yog electronegative heev, lub teb zoo tshaj yog tsis yog, thiab hauv chav kawm no peb yuav txiav txim siab chlorine tsis tsim hydrogen bonds (txawm tias nws muaj tib lub electronegativity li oxygen).
