Photoswitchable catalysts: correlating structure and conformational dynamics with reactivity by a combined experimental and computational approach.
Stoll, Ragnar S; Peters, Maike V; Kuhn, Andreas; Heiles, Sven; Goddard, Richard; Bühl, Michael; Thiele, Christina M; Hecht, Stefan; Journal of the American Chemical Society 131 (2009) 357–367; doi:10.1021/ja807694s

data_4101709
_publ_section_title
;
 Photoswitchable catalysts: correlating structure and conformational
 dynamics with reactivity by a combined experimental and computational
 approach.
;
_journal_issue                   1
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              357
_journal_page_last               367
_journal_paper_doi               10.1021/ja807694s
_journal_volume                  131
_journal_year                    2009
_chemical_formula_moiety         'C38 H41 N3 O2'
_chemical_formula_sum            'C38 H41 N3 O2'
_chemical_formula_weight         571.74
_chemical_name_systematic
; 
 4-trans-(3',5'-bis-(2,6-dimethylphenyl)phenyldiazo)-3-spiro-
(N-tert-butyl-4'-piperidyl)-phthalide 
;
_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                 116.154(3)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   11.3812(4)
_cell_length_b                   24.8447(10)
_cell_length_c                   12.4766(4)
_cell_measurement_reflns_used    2000
_cell_measurement_temperature    150(2)
_cell_measurement_theta_max      22
_cell_measurement_theta_min      5
_cell_volume                     3166.7(2)
_computing_cell_refinement       'X-AREA (Stoe & Cie, 2002)'
_computing_data_collection       'X-AREA (Stoe & Cie, 2002)'
_computing_data_reduction        'X-RED (Stoe & Cie, 2002)'
_computing_molecular_graphics    'DIAMOND (Brandenburg & Berndt, 1999)'
_computing_publication_material  'SHELXL97 (Sheldrick, 1997)'
_computing_structure_refinement  'SHELXL97 (Sheldrick, 1997)'
_computing_structure_solution    'SIR2004 (Burla et al., 2005)'
_diffrn_ambient_temperature      150(2)
_diffrn_detector_area_resol_mean 6.67
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.998
_diffrn_measurement_device       'Stoe IPDS-2t diffractometer'
_diffrn_measurement_method       '\w-rotation,\w-incr.=1\%,240 exposures'
_diffrn_radiation_collimation    '0.5 mm diameter monocapillary'
_diffrn_radiation_monochromator  'planar graphite'
_diffrn_radiation_source         'long fine focus sealed X-ray tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.1288
_diffrn_reflns_av_sigmaI/netI    0.0687
_diffrn_reflns_limit_h_max       12
_diffrn_reflns_limit_h_min       -13
_diffrn_reflns_limit_k_max       29
_diffrn_reflns_limit_k_min       -29
_diffrn_reflns_limit_l_max       14
_diffrn_reflns_limit_l_min       -15
_diffrn_reflns_number            50374
_diffrn_reflns_theta_full        25.25
_diffrn_reflns_theta_max         25.25
_diffrn_reflns_theta_min         3.18
_diffrn_standards_decay_%        0
_diffrn_standards_interval_count 0
_diffrn_standards_interval_time  0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.074
_exptl_absorpt_correction_T_max  0.9982
_exptl_absorpt_correction_T_min  0.9912
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            orange
_exptl_crystal_density_diffrn    1.199
_exptl_crystal_density_method    none
_exptl_crystal_description       plate
_exptl_crystal_F_000             1224
_exptl_crystal_size_max          0.12
_exptl_crystal_size_mid          0.08
_exptl_crystal_size_min          0.02
_refine_diff_density_max         0.180
_refine_diff_density_min         -0.212
_refine_diff_density_rms         0.035
_refine_ls_extinction_coef       0.0037(3)
_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   0.835
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     396
_refine_ls_number_reflns         5732
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.835
_refine_ls_R_factor_all          0.0778
_refine_ls_R_factor_gt           0.0392
_refine_ls_shift/su_max          0.003
_refine_ls_shift/su_mean         0.001
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0347P)^2^] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0697
_refine_ls_wR_factor_ref         0.0773
_reflns_number_gt                3690
_reflns_number_total             5732
_reflns_threshold_expression     I>2sigma(I)
_cod_data_source_file            ja807694s_si_004.cif
_cod_data_source_block           stoll2
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
according to the built-in table from CIF Core dictionary named
'cif_core.dic' version 2.4.1 from 2010-06-29.

Automatic conversion script
Id: cif_fix_values 1673 2011-04-08 12:14:43Z adriana 
;
_cod_original_sg_symbol_H-M      'P 21/c'
_cod_database_code               4101709