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wjqhp木蟲(chóng) (正式寫(xiě)手)
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[交流]
【已解決】Boehmite 晶體結(jié)構(gòu)怎么畫(huà)呢 已有3人參與
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大家好,有個(gè)問(wèn)題請(qǐng)教一下大家。( Materials Studio 4.4) 我想畫(huà)出boehmite的結(jié)構(gòu),但是其中的氫原子,是50%占位的。盡管我在occupancy里面寫(xiě)成0.5,但最后的結(jié)構(gòu)圖上依然是所有氫原子都顯示,這樣晶胞中就多余了4個(gè)氫,無(wú)法去掉。而且,氫原子應(yīng)該和氧原子形成氫鍵的。 有空的網(wǎng)友幫看一下吧,謝謝了。 The problem may be in the occupancy of hydrogen. I have already changed the occupancy of hydrogen to 0.5 during building the crystal. However, all the hydrogen atoms always displayed in the unit cell. It looks like a wrong structure. How can I make the hydrogen atoms just show 1/2? 晶胞參數(shù): Space group: 63-amam,a=3.693,b=12.22,c=2.865; Atom positions: Al (0.25,-0.3178,0),O1( 0.25,0.2897,0),O2(0.25, 0.0809,0),1/2 H (0.396,0.038,0). Structure refs: Clays and clay Minerals, 1981, 29(6):435-445. Thank you very much. Leo [ Last edited by wjqhp on 2010-6-26 at 23:51 ] |

木蟲(chóng) (正式寫(xiě)手)
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The question has been tetatively solved by the following way: Change the unit cell to super cell for changing the symmetry of unit cell; Remove the extraneous H atoms manually; Find symmetry again and impose it to the new structure. That is all. |

金蟲(chóng) (著名寫(xiě)手)
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