Discovery of long-wavelength photoactivatable diaryltetrazoles for bioorthogonal 1,3-dipolar cycloaddition reactions.
Wang, Yizhong; Hu, Wen J.; Song, Wenjiao; Lim, Reyna K. V.; Lin, Qing; Organic letters 10 (2008) 3725–3728; doi:10.1021/ol801350r

data_1504812
_publ_section_title
;
 Discovery of long-wavelength photoactivatable diaryltetrazoles for
 bioorthogonal 1,3-dipolar cycloaddition reactions.
;
_journal_issue                   17
_journal_name_full               'Organic letters'
_journal_page_first              3725
_journal_page_last               3728
_journal_paper_doi               10.1021/ol801350r
_journal_volume                  10
_journal_year                    2008
_chemical_formula_moiety         'C18 H20 N4 O3'
_chemical_formula_sum            'C18 H20 N4 O3'
_chemical_formula_weight         340.38
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2ybc'
_symmetry_space_group_name_H-M   'P 1 21/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                 116.0680(10)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   10.0439(5)
_cell_length_b                   16.4876(8)
_cell_length_c                   10.9830(5)
_cell_measurement_reflns_used    9377
_cell_measurement_temperature    90(1)
_cell_measurement_theta_max      27.10
_cell_measurement_theta_min      2.41
_cell_volume                     1633.76(14)
_computing_cell_refinement       'Bruker Saint v7.23A (Bruker, 2005)'
_computing_data_collection       'APEX2 (Bruker, 2004)'
_computing_data_reduction        'Bruker Saint v7.23A (Bruker, 2005)'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1997)'
_diffrn_ambient_temperature      90(1)
_diffrn_detector_area_resol_mean 8.33
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.999
_diffrn_measurement_device_type  'Bruker SMART APEX2'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'rotating anode'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0232
_diffrn_reflns_av_sigmaI/netI    0.0143
_diffrn_reflns_limit_h_max       12
_diffrn_reflns_limit_h_min       -12
_diffrn_reflns_limit_k_max       21
_diffrn_reflns_limit_k_min       -20
_diffrn_reflns_limit_l_max       14
_diffrn_reflns_limit_l_min       -14
_diffrn_reflns_number            22819
_diffrn_reflns_theta_full        27.13
_diffrn_reflns_theta_max         27.13
_diffrn_reflns_theta_min         2.26
_diffrn_source_type              'RIGAKU RU-2000BEH'
_exptl_absorpt_coefficient_mu    0.097
_exptl_absorpt_correction_T_max  0.9904
_exptl_absorpt_correction_T_min  0.9662
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   '(SADABS 2004/1 Bruker 2004)'
_exptl_crystal_colour            'pale yellow'
_exptl_crystal_density_diffrn    1.384
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             720
_exptl_crystal_size_max          0.25
_exptl_crystal_size_mid          0.12
_exptl_crystal_size_min          0.10
_refine_diff_density_max         0.303
_refine_diff_density_min         -0.255
_refine_diff_density_rms         0.042
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.030
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     228
_refine_ls_number_reflns         3611
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.030
_refine_ls_R_factor_all          0.0386
_refine_ls_R_factor_gt           0.0331
_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^)+(0.0383P)^2^+0.7543P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0810
_refine_ls_wR_factor_ref         0.0855
_reflns_number_gt                3187
_reflns_number_total             3611
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ol801350r_si_001.cif
_cod_data_source_block           QingLin022908
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
according to /home/saulius/struct/CIF-dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.1 from 2010-06-29.

Automatic conversion script
Id: cif_fix_values 1715 2011-07-08 13:25:40Z adriana 
;
_cod_original_sg_symbol_H-M      'P 21/c'
_cod_database_code               1504812