Chelate-Assisted Ring-Closing Metathesis: A Strategy for Accelerated Macrocyclization at Ambient Temperatures.
Higman, Carolyn S.; do Nascimento, Daniel Luis; Ireland, Benjamin J.; Audörsch, Stephan; Bailey, Gwendolyn A.; McDonald, Robert; Fogg, Deryn Elizabeth; Journal of the American Chemical Society  (2018) –; doi:10.1021/jacs.7b13257

data_4127074
_publ_section_title
;
 Chelate-Assisted Ring-Closing Metathesis: A Strategy for Accelerated
 Macrocyclization at Ambient Temperatures.
;
_journal_name_full               'Journal of the American Chemical Society'
_journal_paper_doi               10.1021/jacs.7b13257
_journal_year                    2018
_chemical_formula_moiety         'C40 H42 Cl2 N4 Ru, 2(C7 H8)'
_chemical_formula_sum            'C54 H58 Cl2 N4 Ru'
_chemical_formula_weight         935.01
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           19
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  'P 2ac 2ab'
_symmetry_space_group_name_H-M   'P 21 21 21'
_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                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   11.0709(13)
_cell_length_b                   17.884(2)
_cell_length_c                   23.464(3)
_cell_measurement_reflns_used    9919
_cell_measurement_temperature    173(2)
_cell_measurement_theta_max      21.94
_cell_measurement_theta_min      2.16
_cell_volume                     4645.7(10)
_computing_cell_refinement       'Bruker SAINT'
_computing_data_collection       'Bruker APEX2'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_solution    'DIRDIF-2008 (Beurskens et al., 2008)'
_diffrn_ambient_temperature      173(2)
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.998
_diffrn_measurement_device_type  'Bruker APEX-II CCD'
_diffrn_measurement_method       '\w scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0742
_diffrn_reflns_av_sigmaI/netI    0.0565
_diffrn_reflns_limit_h_max       13
_diffrn_reflns_limit_h_min       -13
_diffrn_reflns_limit_k_max       22
_diffrn_reflns_limit_k_min       -22
_diffrn_reflns_limit_l_max       29
_diffrn_reflns_limit_l_min       -29
_diffrn_reflns_number            37416
_diffrn_reflns_theta_full        26.45
_diffrn_reflns_theta_max         26.45
_diffrn_reflns_theta_min         1.43
_exptl_absorpt_coefficient_mu    0.493
_exptl_absorpt_correction_T_max  0.9395
_exptl_absorpt_correction_T_min  0.8891
_exptl_absorpt_correction_type   integration
_exptl_absorpt_process_details   'SADABS (Sheldrick, 2008)'
_exptl_crystal_colour            green
_exptl_crystal_density_diffrn    1.337
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             1952
_exptl_crystal_size_max          0.24
_exptl_crystal_size_mid          0.18
_exptl_crystal_size_min          0.13
_refine_diff_density_max         1.520
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_refine_diff_density_rms         0.102
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   -0.03(5)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.084
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     516
_refine_ls_number_reflns         9567
_refine_ls_number_restraints     6
_refine_ls_restrained_S_all      1.085
_refine_ls_R_factor_all          0.0772
_refine_ls_R_factor_gt           0.0587
_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^)+(0.0855P)^2^+3.7372P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1477
_refine_ls_wR_factor_ref         0.1597
_reflns_number_gt                7693
_reflns_number_total             9567
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            ja7b13257_si_002.cif
_cod_data_source_block           ott1202
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Orthorhombic' changed to
'orthorhombic' according to
/home/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 4973 2017-02-22 13:04:09Z antanas 
;
_cod_original_cell_volume        4645.8(9)
_cod_database_code               4127074