Regio- and diastereo-selective formation of dicopper(I) and disilver(I) double helicates with chiral 6-substituted 2,2'∶6',2″-terpyridines
Baum, Gerhard; Constable, Edwin C.; Fenske, Dieter; Housecroft, Catherine E.; Kulke, Torsten; Neuburger, Markus; Zehnder, Margareta; Journal of the Chemical Society, Dalton Transactions  (2000) 945–; doi:10.1039/a909158k

data_7009183
_publ_section_title
;
 Regio- and diastereo-selective formation of dicopper(I) and
 disilver(I) double helicates with chiral 6-substituted
 2,2'&#x2236;6',2&#x2033;-terpyridines
;
_journal_issue                   6
_journal_name_full
'Journal of the Chemical Society, Dalton Transactions'
_journal_page_first              945
_journal_paper_doi               10.1039/a909158k
_journal_year                    2000
_chemical_compound_source
;
?
;
_chemical_formula_moiety         '  C25 H27 N3 O '
_chemical_formula_sum            'C25 H27 N3 O'
_chemical_formula_weight         385.511
_space_group_IT_number           4
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  'P 2yb'
_symmetry_space_group_name_H-M   'P 1 21 1'
_audit_creation_date             97-01-28
_audit_creation_method           CRYSTALS
_cell_angle_alpha                90
_cell_angle_beta                 105.38(1)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   13.1768(21)
_cell_length_b                   7.7443(7)
_cell_length_c                   21.4713(16)
_cell_measurement_reflns_used    22
_cell_measurement_temperature    293
_cell_measurement_theta_max      43
_cell_measurement_theta_min      22
_cell_volume                     2112.6(4)
_diffrn_ambient_temperature      293
_diffrn_measurement_method       2\q/\w
_diffrn_radiation_type           'Cu K\a'
_diffrn_radiation_wavelength     1.54180
_diffrn_reflns_av_R_equivalents  0.01
_diffrn_reflns_limit_h_max       16
_diffrn_reflns_limit_h_min       -15
_diffrn_reflns_limit_k_max       9
_diffrn_reflns_limit_k_min       0
_diffrn_reflns_limit_l_max       0
_diffrn_reflns_limit_l_min       -26
_diffrn_reflns_number            4314
_diffrn_reflns_theta_max         74.33
_diffrn_reflns_theta_min         2.20
_diffrn_standards_decay_%        7.53
_diffrn_standards_interval_time  120
_diffrn_standards_number         3
_exptl_absorpt_coefficient_mu    0.55
_exptl_absorpt_correction_T_max  1.00
_exptl_absorpt_correction_T_min  0.75
_exptl_absorpt_correction_type   empirical
_exptl_absorpt_process_details   '\y scan'
_exptl_crystal_colour            ' colourless '
_exptl_crystal_density_diffrn    1.21
_exptl_crystal_description       ' cube '
_exptl_crystal_F_000             824
_exptl_crystal_size_max          0.56
_exptl_crystal_size_mid          0.40
_exptl_crystal_size_min          0.20
_refine_diff_density_max         0.27
_refine_diff_density_min         -0.32
_refine_ls_abs_structure_details 'not determined'
_refine_ls_extinction_coef       13.3(43)
_refine_ls_extinction_method     'Larson 1970 Crystallographic Computing eq 22'
_refine_ls_goodness_of_fit_obs   0.8879
_refine_ls_number_parameters     525
_refine_ls_number_reflns         3458
_refine_ls_R_factor_obs          0.0651
_refine_ls_shift/esd_max         0.028897
_refine_ls_structure_factor_coef F
_refine_ls_wR_factor_obs         0.0786
_reflns_limit_h_max              15
_reflns_limit_h_min              -16
_reflns_limit_k_max              9
_reflns_limit_k_min              0
_reflns_limit_l_max              26
_reflns_limit_l_min              0
_reflns_number_observed          3458
_reflns_number_total             4199
_reflns_observed_criterion       >3.00\s(I)
_cod_data_source_file            a909158k.txt
_cod_data_source_block           TKA128
_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_enum 1527 2010-12-29 10:47:43Z saulius 
;
_cod_original_sg_symbol_H-M      'P 21'
_cod_original_formula_sum        ' C25 H27 N3 O '
_cod_database_code               7009183