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hwkai金蟲 (初入文壇)
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[求助]
單晶解析如何看Checkcif!
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小哥最近才剛剛開始接觸單晶,學(xué)習(xí)如何解析。由于基礎(chǔ)薄,剛剛開始。目前嘗試解析晶體,Checkcif提示如下 Alert level A PLAT029_ALERT_3_A _diffrn_measured_fraction_theta_full Low ....... 0.890 Alert level B REFLT03_ALERT_3_B Reflection count < 90% complete (theta max?) From the CIF: _diffrn_reflns_theta_max 32.15 From the CIF: _diffrn_reflns_theta_full 32.15 From the CIF: _reflns_number_total 8607 TEST2: Reflns within _diffrn_reflns_theta_max Count of symmetry unique reflns 9673 Completeness (_total/calc) 88.98% Crystal system given = monoclinic PLAT093_ALERT_1_B No su’s on H-atoms, but refinement reported as . mixed PLAT220_ALERT_2_B Large Non-Solvent C Ueq(max)/Ueq(min) ... 5.9 Ratio Alert level C PLAT213_ALERT_2_C Atom C1J has ADP max/min Ratio ..... 3.2 prola PLAT222_ALERT_3_C Large Non-Solvent H Uiso(max)/Uiso(min) .. 6.4 Ratio PLAT234_ALERT_4_C Large Hirshfeld Difference C1 -- C1J .. 0.16 Ang. PLAT242_ALERT_2_C Check Low Ueq as Compared to Neighbors for C1 PLAT360_ALERT_2_C Short C(sp3)-C(sp3) Bond C1 - C1J ... 1.42 Ang Alert level G REFLT03_ALERT_1_G ALERT: Expected hkl max differ from CIF values From the CIF: _diffrn_reflns_theta_max 32.15 From the CIF: _reflns_number_total 8607 From the CIF: _diffrn_reflns_limit_ max hkl 15. 23. 21. From the CIF: _diffrn_reflns_limit_ min hkl -9. -25. -20. TEST1: Expected hkl limits for theta max Calculated maximum hkl 15. 27. 21. Calculated minimum hkl -15. -27. -21. PLAT005_ALERT_5_G No _iucr_refine_instructions_details in CIF .... ? PLAT007_ALERT_5_G Note: Number of Unrefined D-H Atoms ............ 1 PLAT128_ALERT_4_G Alternate Setting of Space-group P21/c ....... P21/n PLAT199_ALERT_1_G Check the Reported _cell_measurement_temperature 293 K PLAT200_ALERT_1_G Check the Reported _diffrn_ambient_temperature 293 K PLAT232_ALERT_2_G Hirshfeld Test Diff (M-X) Ru1 -- Cl4 .. 5.6 su PLAT720_ALERT_4_G Number of Unusual/Non-Standard Labels .......... 9 PLAT951_ALERT_5_G Reported and Calculated Kmax Values Differ by .. 2 請(qǐng)各位專家?guī)蛶兔,最好能逐條給我作下解釋,如何進(jìn)一步修正請(qǐng)賜教。在這謝謝各位專家和前輩指點(diǎn),路過的也觀注一下,相互學(xué)習(xí)學(xué)習(xí)!非常感謝 |
至尊木蟲 (職業(yè)作家)
木蟲 (正式寫手)

金蟲 (初入文壇)
木蟲 (小有名氣)
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