Cov khoom sib xyaw yog cov khoom ntawm chav tsev kub feem ntau vim yog di-hydrogen bonding thiab dipole-dipole kev sib cuam tshuam. Txawm hais tias ammonia borane thiab diammonate ntawm diborane muaj tib cov tshuaj formula lawv txawv heev nyob rau hauv stability.
Puas ammonia puas muaj zog?
Ammonia yog roj tsis muaj xim nrog tus yam ntxwv tsw ntxhiab tsw. Nws yog qhov sib dua ntawm huab cua, nws qhov ceev yog 0.589 npaug ntawm huab cua. Nws yog yooj yim liquefied vim muaj zog hydrogen bonding ntawm molecules; cov kua boils ntawm −33.3 ° C (−27.94 ° F), thiab khov rau dawb crystals ntawm −77.7 ° C (−107.86 ° F).
YPuas ammonia borane soluble hauv dej?
7.4 Kev Hloov Hlau Hlau Nanoparticles Catalysts hauv Hydrogen Generation los ntawm Hydrolysis ntawm Ammonia Borane. Ammonia borane dissolves hauv dej tsim cov tshuaj ruaj khov thaum tsis muaj cua. Txawm li cas los xij, hydrogen raug tso tawm raws li nws cov kua qaub catalyzed hydrolysis hauv cov kua dej (Eq. (7.2)) [124].
Vim li cas NH3BH3 yog ib qho khoom?
NH3BH3 yog cov khoom nyob rau hauv chav tsev kub nrog lub siab melting point ntawm 104 ° C thaum piv rau cov tebchaw xws li isoelectronic C2H6 uas melts ntawm -183 ° C. Qhov no feem ntau yog vim dipole-dipole kev sib cuam tshuam thiab lub network ntawm dihydrogen bonding.
Ammonia borane ua li cas?
Ammonia borane tuaj yeem tsim los ntawm sib txuas ammonia chloride thiab sodium borohydride thiab tom qab ntawd decomposing rau hauv THF. Nws kuj tuaj yeem tsim los ntawm kev sib xyaw diborane thiab ammonia ntawm qhov kub thiab txias.
