Allenoate-derived 1,5-, 1,7-, and 1,9-zwitterions as highly versatile coupling-partners for phosphine-triggered cycloaddition reactions
Meng, Wei; Zhao, Hai-Tao; Nie, Jing; Zheng, Yan; Fu, Aiping; Ma, Jun-An; Chemical Science 3 (2012) 3053–; doi:10.1039/c2sc20805a

data_1515073
_publ_section_title
;
 Allenoate-derived 1,5-, 1,7-, and 1,9-zwitterions as highly versatile
 coupling-partners for phosphine-triggered cycloaddition reactions
;
_journal_issue                   10
_journal_name_full               'Chemical Science'
_journal_page_first              3053
_journal_paper_doi               10.1039/c2sc20805a
_journal_volume                  3
_journal_year                    2012
_chemical_formula_sum            'C22 H25 N3 O7'
_chemical_formula_weight         443.45
_space_group_IT_number           9
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  'C -2yc'
_symmetry_space_group_name_H-M   'C 1 c 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                90.00
_cell_angle_beta                 95.55(3)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   15.778(3)
_cell_length_b                   16.681(3)
_cell_length_c                   8.3240(17)
_cell_measurement_reflns_used    3442
_cell_measurement_temperature    113(2)
_cell_measurement_theta_max      27.065
_cell_measurement_theta_min      1.781
_cell_volume                     2180.5(7)
_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      113(2)
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.998
_diffrn_measurement_device_type  'rigaku saturn'
_diffrn_measurement_method       '\w scans'
_diffrn_radiation_monochromator  confocal
_diffrn_radiation_source         'rotating anode'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0529
_diffrn_reflns_av_sigmaI/netI    0.1101
_diffrn_reflns_limit_h_max       18
_diffrn_reflns_limit_h_min       -18
_diffrn_reflns_limit_k_max       19
_diffrn_reflns_limit_k_min       -19
_diffrn_reflns_limit_l_max       9
_diffrn_reflns_limit_l_min       -8
_diffrn_reflns_number            7249
_diffrn_reflns_theta_full        25.02
_diffrn_reflns_theta_max         25.02
_diffrn_reflns_theta_min         1.78
_diffrn_standards_decay_%        0
_diffrn_standards_interval_count 0
_diffrn_standards_interval_time  0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.102
_exptl_absorpt_correction_T_max  0.9879
_exptl_absorpt_correction_T_min  0.9799
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   crystalclear
_exptl_crystal_density_diffrn    1.351
_exptl_crystal_density_method    'not measured'
_exptl_crystal_F_000             936
_exptl_crystal_size_max          0.20
_exptl_crystal_size_mid          0.16
_exptl_crystal_size_min          0.12
_refine_diff_density_max         0.234
_refine_diff_density_min         -0.270
_refine_diff_density_rms         0.058
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   -1.9(14)
_refine_ls_extinction_coef       0.0263(15)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     SHELXL
_refine_ls_goodness_of_fit_ref   0.849
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     293
_refine_ls_number_reflns         3236
_refine_ls_number_restraints     2
_refine_ls_restrained_S_all      0.849
_refine_ls_R_factor_all          0.0638
_refine_ls_R_factor_gt           0.0469
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0585P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1033
_refine_ls_wR_factor_ref         0.1147
_reflns_number_gt                2049
_reflns_number_total             3236
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c2sc20805a.txt
_cod_data_source_block           r90402a
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
according to
/usr/data/users/saulius/automatic-downloads/retrospective/RSC/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/automatic-downloads/retrospective/RSC/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/automatic-downloads/retrospective/RSC/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 2281 2013-09-26 08:29:07Z andrius 
;
_cod_original_cell_volume        2180.5(8)
_cod_original_sg_symbol_H-M      Cc
_cod_database_code               1515073