Brine-Stabilized 2,2,2-Trifluorodiazoethane and Its Application in the Synthesis of CF3-Substituted Cyclopropane α-Amino Acids.
Zhu, Chuan-Le; Yang, Li-Jun; Li, Shen; Zheng, Yan; Ma, Jun-An; Organic letters 17 (2015) 3442–3445; doi:10.1021/acs.orglett.5b01450

data_1520727
_publ_section_title
;
 Brine-Stabilized 2,2,2-Trifluorodiazoethane and Its Application in the
 Synthesis of CF3-Substituted Cyclopropane \a-Amino Acids.
;
_journal_issue                   14
_journal_name_full               'Organic letters'
_journal_page_first              3442
_journal_page_last               3445
_journal_paper_doi               10.1021/acs.orglett.5b01450
_journal_volume                  17
_journal_year                    2015
_chemical_formula_sum            'C28 H23 F3 N2 O3'
_chemical_formula_weight         492.48
_space_group_IT_number           2
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_symmetry_space_group_name_Hall  '-P 1'
_symmetry_space_group_name_H-M   'P -1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                87.00(3)
_cell_angle_beta                 76.43(3)
_cell_angle_gamma                65.66(2)
_cell_formula_units_Z            2
_cell_length_a                   8.882(6)
_cell_length_b                   10.743(9)
_cell_length_c                   14.629(13)
_cell_measurement_reflns_used    1937
_cell_measurement_temperature    294(2)
_cell_measurement_theta_max      27.5
_cell_measurement_theta_min      3.2
_cell_volume                     1234.8(17)
_computing_cell_refinement       CRYSTALCLEAR
_computing_data_collection       CRYSTALCLEAR
_computing_data_reduction        CRYSTALCLEAR
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      294(2)
_diffrn_detector_area_resol_mean 13.6612
_diffrn_measured_fraction_theta_full 0.995
_diffrn_measured_fraction_theta_max 0.995
_diffrn_measurement_device_type  'Rigaku Mercury375R'
_diffrn_measurement_method       'profile data from \w-scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
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_diffrn_reflns_av_sigmaI/netI    0.0616
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       -10
_diffrn_reflns_limit_k_max       12
_diffrn_reflns_limit_k_min       -12
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_diffrn_reflns_limit_l_min       -17
_diffrn_reflns_number            10589
_diffrn_reflns_theta_full        25.03
_diffrn_reflns_theta_max         25.03
_diffrn_reflns_theta_min         3.18
_exptl_absorpt_coefficient_mu    0.102
_exptl_absorpt_correction_T_max  0.9949
_exptl_absorpt_correction_T_min  0.9741
_exptl_absorpt_correction_type   multi-scan
_exptl_crystal_colour            COLORLESS
_exptl_crystal_density_diffrn    1.325
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       BLOCK
_exptl_crystal_F_000             512
_exptl_crystal_size_max          0.26
_exptl_crystal_size_mid          0.09
_exptl_crystal_size_min          0.05
_refine_diff_density_max         0.241
_refine_diff_density_min         -0.209
_refine_diff_density_rms         0.045
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.050
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     326
_refine_ls_number_reflns         4344
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.050
_refine_ls_R_factor_all          0.1119
_refine_ls_R_factor_gt           0.0622
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0960P)^2^+0.0139P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1536
_refine_ls_wR_factor_ref         0.1916
_reflns_number_gt                2480
_reflns_number_total             4344
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ol5b01450_si_003.cif
_cod_data_source_block           131113a
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'TRICLINIC' changed to 'triclinic'
according to
/usr/data/users/saulius/crontab/automatic-downloads/rss-feeds/ACS/lib/dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 from 2011-04-26.

'_exptl_absorpt_correction_type' value 'MULTI-SCAN' changed to
'multi-scan' according to
/usr/data/users/saulius/crontab/automatic-downloads/rss-feeds/ACS/lib/dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 from 2011-04-26.

'_refine_ls_hydrogen_treatment' value 'CONSTR' changed to 'constr'
according to
/usr/data/users/saulius/crontab/automatic-downloads/rss-feeds/ACS/lib/dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 from 2011-04-26.

Automatic conversion script
Id: cif_fix_values 3271 2015-04-21 07:52:19Z andrius 

 Adding full bibliography for 1520726--1520727.cif.
;
_cod_original_cell_volume        1234.9(17)
_cod_original_sg_symbol_H-M      P-1
_cod_database_code               1520727