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【现在求学or工作】:求学 【所学专业、具体方向】:金属有机化学 【研究领域】:前过渡金属有机化合物合成与性质 【擅长领域】:也没太擅长的,就是有些实战经验 【希望在何领域与虫友交流】:单晶X射线结构表征 【经常何时段在线】:23点到1点 【前沿领域介绍】: 研究方向:目前主要集中在镧系金属化合物的合成,结构表征与性质研究。 制备方法:主要通过无水无氧体系制备预期的金属化合物 |
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流浪的云
木虫 (小有名气)
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10楼2012-03-07 21:42:19
流浪的云
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老师您好! 现在编辑主要是对文章中晶体数据Data / restraints / parameters 3969 / 0 / 305进行发问pag 9 23 Are their no restraints for the ‘riding’ hydrogens? 这是我单晶结构的描述部分,我没有进行限制只是进行了理论加氢。我该怎么解释那 The crystallographic data for complexes 1 was collected on a Bruker Smart 1000 CCD area detector diffractometer equipped with Mo Kα (λ = 0.71073 Å radiation using ω-scan mode. Empiricalabsorption correction was applied to the data. Unit cell dimensions were obtained with least-squares refinements, and all structures were solved by direct methods with SHELXL–97. All non-hydrogen atoms were located from the trial structure and then refined anisotropically. All hydrogen atoms were generated in idealized positions. All calculations were performed with SHELXL-97 programs [22]. Other relevant parameters of the crystal structure are listed in Table 1. |

12楼2012-03-08 10:59:51
流浪的云
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You have not supplied any structure factors. As a result the full set of tests cannot be run. No syntax errors found. CIF dictionaryPlease wait while processing .... Interpreting this reportDatablock: b -------------------------------------------------------------------------------- Bond precision: C-C = 0.0070 A Wavelength=0.71073 Cell: a=8.924(2) b=11.653(3) c=12.108(3) alpha=75.218(4) beta=81.164(4) gamma=70.778(3) Temperature: 298 K Calculated Reported Volume 1146.2(5) 1146.3(5) Space group P -1 P-1 Hall group -P 1 ? Moiety formula C42 H32 Cl2 Cu N8 O8, 2(C2 H3 N) ? Sum formula C46 H38 Cl2 Cu N10 O8 C46 H38 Cl2 Cu N10 O8 Mr 993.31 993.30 Dx,g cm-3 1.439 1.439 Z 1 1 Mu (mm-1) 0.658 0.658 F000 511.0 511.0 F000' 511.81 h,k,lmax 10,13,14 10,13,14 Nref 4039 3969 Tmin,Tmax 0.821,0.877 0.827,0.880 Tmin' 0.821 Correction method= NONE Data completeness= 0.983 Theta(max)= 25.000 R(reflections)= 0.0610( 2640) wR2(reflections)= 0.1760( 3969) S = 1.060 Npar= 305 -------------------------------------------------------------------------------- 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 B PLAT241_ALERT_2_B Check High Ueq as Compared to Neighbors for O3 PLAT410_ALERT_2_B Short Intra H...H Contact H12 .. H15 .. 1.83 Ang. --------------------------------------------------------------------------------Alert level C ABSTY03_ALERT_1_C The _exptl_absorpt_correction_type has been given as none. However values have been given for Tmin and Tmax. Remove these if an absorption correction has not been applied. From the CIF: _exptl_absorpt_correction_T_min 0.827 From the CIF: _exptl_absorpt_correction_T_max 0.880 PLAT213_ALERT_2_C Atom O6 has ADP max/min Ratio ..... 3.2 prola PLAT242_ALERT_2_C Check Low Ueq as Compared to Neighbors for Cu1 PLAT244_ALERT_4_C Low 'Solvent' Ueq as Compared to Neighbors of C23 PLAT341_ALERT_3_C Low Bond Precision on C-C Bonds ............... 0.0070 Ang --------------------------------------------------------------------------------Alert level G PLAT005_ALERT_5_G No _iucr_refine_instructions_details in CIF .... ? PLAT194_ALERT_1_G Missing _cell_measurement_reflns_used datum .... ? PLAT195_ALERT_1_G Missing _cell_measurement_theta_max datum .... ? PLAT196_ALERT_1_G Missing _cell_measurement_theta_min datum .... ? PLAT794_ALERT_5_G Note: Tentative Bond Valency for Cu1 (II) 2.29 -------------------------------------------------------------------------------- |

14楼2012-03-09 08:38:59







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烈火如歌如梦
radiation using ω-scan mode. Empirical