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shenwei1225銅蟲 (小有名氣)
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[求助]
單晶解析求助 已有4人參與
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在下初學晶體解析,遇到一些問題。 1. 在下在處理該數(shù)據(jù)的時候,發(fā)現(xiàn)是兩個對稱結(jié)構(gòu),但又不是三方或六方晶系,不知是不是屬于孿晶問題。 2. 如果是孿晶問題,不知能通過什么軟件進行孿晶檢驗;如果不是孿晶問題,可不可以對該結(jié)構(gòu)不加理會 3. 本人專業(yè)與晶體解析可能相關(guān)性不大,所以專業(yè)知識不是特別扎實。最近一直在看《單晶結(jié)構(gòu)分析原理與實踐》和《晶體結(jié)構(gòu)精修》,可不可以推薦一些其他相關(guān)的教材,方便在下理解。 大體結(jié)構(gòu)已經(jīng)給出,希望有朋友可以幫忙。 |

木蟲 (正式寫手)
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1135485027 領(lǐng)取數(shù)據(jù) 傳不上去 Bond precision: C-C = 0.0071 A Wavelength=0.71073 Cell: a=10.0744(3) b=10.4491(3) c=21.6791(6) alpha=90 beta=95.102(2) gamma=90 Temperature: 296 K Calculated Reported Volume 2273.08(11) 2273.08(11) Space group P 21 ? Hall group P 2yb ? Moiety formula C26 H21 Cl N2 O2 S ? Sum formula C26 H21 Cl N2 O2 S C26 H21 Cl N2 O2 S Mr 460.96 460.96 Dx,g cm-3 1.347 1.347 Z 4 4 Mu (mm-1) 0.286 0.286 F000 960.0 960.0 F000' 961.44 h,k,lmax 12,12,25 12,12,25 Nref 8097[ 4291] 8080 Tmin,Tmax Tmin' Correction method= Not given Data completeness= 1.88/1.00 Theta(max)= 25.100 R(reflections)= 0.0300( 7527) wR2(reflections)= 0.0701( 8080) S = 1.035 Npar= 769 -------------------------------------------------------------------------------- The following ALERTS were generated. Each ALERT has the format test-name_ALERT_alert-type_alert-level. Click on the hyperlinks for more details of the test. --------------------------------------------------------------------------------Alert level A SYMM001_ALERT_1_A _symmetry_cell_setting is missing The cell setting should be one of the following * triclinic * monoclinic * orthorhombic * tetragonal * rhombohedral * trigonal * hexagonal * cubic The following tests will not be performed. SYMMS_01,SYMMS_02 EXPT005_ALERT_1_A _exptl_crystal_description is missing Crystal habit description. The following tests will not be performed. CRYSR_01 PLAT122_ALERT_1_A No _symmetry_space_group_name_H-M Given ........ Please Do ! --------------------------------------------------------------------------------Alert level B PLAT035_ALERT_1_B No _chemical_absolute_configuration info given . Please Do ! --------------------------------------------------------------------------------Alert level C PLAT052_ALERT_1_C Info on Absorption Correction Method Not Given . Please Do ! PLAT053_ALERT_1_C Minimum Crystal Dimension Missing (or Error) ... Please Check PLAT054_ALERT_1_C Medium Crystal Dimension Missing (or Error) ... Please Check PLAT055_ALERT_1_C Maximum Crystal Dimension Missing (or Error) ... Please Check |
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捐助貴賓 (著名寫手)
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專家經(jīng)驗: +1066 |
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有那么一點點欒晶在里面 http://pan.baidu.com/s/1pp1Yu |

捐助貴賓 (著名寫手)
用戶注銷 (知名作家)
精修問題可私信
木蟲 (正式寫手)
銅蟲 (小有名氣)

銅蟲 (小有名氣)

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