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zijideng

4Â¥2009-12-17 14:51:13
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s308100075(½ð±Ò+1,VIP+0): 12-28 16:19
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6Â¥2009-12-28 14:16:03
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xianren8516

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s308100075(½ð±Ò+1,VIP+0): 12-28 17:08
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7Â¥2009-12-28 16:25:36
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s308100075

½ð³æ (ÕýʽдÊÖ)

ÎÒËãµÄÊÇ0.408nm

d12=d[C-H]2+d[C-C]2-2d[C-H][C-C]cos110;
d22= d12=d[C-O]2+d[O-H]2-2d[C-O][O-H]cos106.9;
d1=2.164 A;
d2=1.919 A
d=d1+d2=4.1 A=0.408 nm;
d[C-H]=1.113 A
d[C-C]=1.514 A
d[C-O]=1.421 A;
d[O-H]=0.942 A;
The molecular length of ethanol measured by Chem3D ultra software is 0.408 nm.
8Â¥2009-12-28 17:09:21
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s308100075

½ð³æ (ÕýʽдÊÖ)

ÎÒËãµÄÊÇ0.408nm

d12=d[C-H]2+d[C-C]2-2d[C-H][C-C]cos110;
d22= d12=d[C-O]2+d[O-H]2-2d[C-O][O-H]cos106.9;
d1=2.164 A;
d2=1.919 A
d=d1+d2=4.1 A=0.408 nm;
d[C-H]=1.113 A
d[C-C]=1.514 A
d[C-O]=1.421 A;
d[O-H]=0.942 A;
The molecular length of ethanol measured by Chem3D ultra software is 0.408 nm.
9Â¥2009-12-28 17:09:40
ÒÑÔÄ   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

s308100075

½ð³æ (ÕýʽдÊÖ)

ÎÒËãµÄÊÇ0.408nm

d12=d[C-H]2+d[C-C]2-2d[C-H][C-C]cos110;
d22= d12=d[C-O]2+d[O-H]2-2d[C-O][O-H]cos106.9;
d1=2.164 A;
d2=1.919 A
d=d1+d2=4.1 A=0.408 nm;
d[C-H]=1.113 A
d[C-C]=1.514 A
d[C-O]=1.421 A;
d[O-H]=0.942 A;
The molecular length of ethanol measured by Chem3D ultra software is 0.408 nm.
10Â¥2009-12-28 17:10:08
ÒÑÔÄ   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû
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