Amide-Functionalized Chalcogen-Bridged Flexible Tetranuclear Rhenacycles: Synthesis, Characterization, Solvent Effect on the Structure, and Guest Binding.
Karthikeyan, Muthuraman; Ramakrishna, Buthanapalli; Vellaiyadevan, Sivalingam; Divya, Dhanaraj; Manimaran, Bala; ACS omega 3 (2018) 3257–3266; doi:10.1021/acsomega.7b02075

data_4516182
_publ_section_title
;
 Amide-Functionalized Chalcogen-Bridged Flexible Tetranuclear Rhenacycles:
 Synthesis, Characterization, Solvent Effect on the Structure, and Guest
 Binding.
;
_journal_issue                   3
_journal_name_full               'ACS omega'
_journal_page_first              3257
_journal_page_last               3266
_journal_paper_doi               10.1021/acsomega.7b02075
_journal_volume                  3
_journal_year                    2018
_chemical_formula_moiety         '2(C34 H28 N4 O8 Re2 S2)'
_chemical_formula_sum            'C68 H56 N8 O16 Re4 S4'
_chemical_formula_weight         2114.25
_space_group_crystal_system      monoclinic
_space_group_IT_number           14
_space_group_name_Hall           '-P 2yn'
_space_group_name_H-M_alt        'P 1 21/n 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_date             2014-04-12
_audit_creation_method
;
  Olex2 1.2
  (compiled 2012.05.09 svn.r2324, GUI svn.r4230)
;
_cell_angle_alpha                90.00
_cell_angle_beta                 94.39(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   20.3840(18)
_cell_length_b                   17.0684(13)
_cell_length_c                   21.821(12)
_cell_measurement_reflns_used    13308
_cell_measurement_temperature    151(2)
_cell_measurement_theta_max      25.00
_cell_measurement_theta_min      2.5396
_cell_volume                     7570(4)
_computing_molecular_graphics
;
O. V. Dolomanov, L. J. Bourhis, R. J. Gildea, J. A. K. Howard and H. Puschmann,
OLEX2: a complete structure solution, refinement and analysis program.
J. Appl. Cryst. (2009). 42, 339-341.
;
_computing_publication_material
;
O. V. Dolomanov, L. J. Bourhis, R. J. Gildea, J. A. K. Howard and H. Puschmann,
OLEX2: a complete structure solution, refinement and analysis program.
J. Appl. Cryst. (2009). 42, 339-341.
;
_computing_structure_refinement
;
SHELXL, G.M. Sheldrick, Acta Cryst.
(2008). A64, 112-122
;
_computing_structure_solution
;
SHELXS, G.M. Sheldrick, Acta Cryst.
(2008). A64, 112-122
;
_diffrn_ambient_temperature      150.7
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.999
_diffrn_measurement_device_type  'Xcalibur, Eos'
_diffrn_measurement_method       '\w scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0735
_diffrn_reflns_av_unetI/netI     0.1000
_diffrn_reflns_limit_h_max       24
_diffrn_reflns_limit_h_min       -24
_diffrn_reflns_limit_k_max       19
_diffrn_reflns_limit_k_min       -20
_diffrn_reflns_limit_l_max       25
_diffrn_reflns_limit_l_min       -25
_diffrn_reflns_number            43196
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         25.00
_diffrn_reflns_theta_min         2.59
_diffrn_source                   'fine-focus sealed tube'
_exptl_absorpt_coefficient_mu    6.553
_exptl_absorpt_correction_T_max  0.307
_exptl_absorpt_correction_T_min  0.241
_exptl_absorpt_correction_type   multi-scan
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.855
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       BLOCK
_exptl_crystal_F_000             4048
_exptl_crystal_size_max          0.23
_exptl_crystal_size_mid          0.20
_exptl_crystal_size_min          0.18
_platon_squeeze_details
;
;
_refine_diff_density_max         2.936
_refine_diff_density_min         -2.304
_refine_diff_density_rms         0.261
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.051
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     841
_refine_ls_number_reflns         13308
_refine_ls_number_restraints     284
_refine_ls_restrained_S_all      1.043
_refine_ls_R_factor_all          0.1088
_refine_ls_R_factor_gt           0.0652
_refine_ls_shift/su_max          0.061
_refine_ls_shift/su_mean         0.003
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0906P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1598
_refine_ls_wR_factor_ref         0.1808
_reflns_number_gt                8466
_reflns_number_total             13308
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ao7b02075_si_002.cif
_cod_data_source_block           2-DCE
_cod_database_code               4516182