graphite(sp2 hybridization) 155pm diamond (sp3 hybridization)
graphite (sp2 hybridization) diamond (sp3 hybridization)
n,=(5,5 (h,=(9,0 Fullerenes C60 (sp2hybridization) C60:12个五边形 90 (,=(10,5 和20个六边形组成的32面体 Multiwall C tubes 的HRTEM形貌
Fullerenes C60 (sp2 hybridization) Multiwall C tubes 的HRTEM形貌 C60 : 12个五边形 和20个六边形组成的32面体
Silicon occurs as either amorphous structure or crystal,the structure of crystal is similar to that of diamond. Germanium is offwhite(灰白色)metal,.the structure of germanium is similar to that of diamond Tin occurs as the allotropes of grey tin,white tin and brittle tin: grey tin 13.white tin 161℃ brittle tin Lead is soft metal and can prevent substances from X-ray
Silicon occurs as either amorphous structure or crystal, the structure of crystal is similar to that of diamond. Germanium is offwhite(灰白色) metal, the structure of germanium is similar to that of diamond. Tin occurs as the allotropes of grey tin, white tin and brittle tin： Lead is soft metal and can prevent substances from X-ray. grey tin 13.2℃ white tin 161℃ brittle tin
14.3 The compounds of carbon 1.The oxides of carbon Carbon monoxide (CO) Structure features: C:2s22p2;0:2s22p4 C0(6+8=14e)andN2(2×7=14e)are isoelectronic substances,so they have similar structure
14.3 The compounds of carbon Structure features： CO(6+8=14e- ) and N2 (2×7=14e- ) are isoelectronic substances, so they have similar structure. 1.The oxides of carbon • Carbon monoxide (CO) C: 2s22p2 ; O: 2s22p4
分子 原子 原子 2p ①D =2 02P N2 molecule 2 2 C≡O】 Oneo bond C- :N=N: Twoπbonds
N2 molecule Oneσ bond Two π bonds :C O: :C O: :N N: