Subtle Modulation of Cu4X4L2 Phosphine Cluster Cores Leads to Changes in Luminescence.
Chen, Kelly; Shearer, Jason; Catalano, Vincent J.; Inorganic chemistry 54 (2015) 6245–6256; doi:10.1021/acs.inorgchem.5b00443

data_4343310
_publ_section_title
;
 Subtle Modulation of Cu4X4L2 Phosphine Cluster Cores Leads to Changes in
 Luminescence.
;
_journal_issue                   13
_journal_name_full               'Inorganic chemistry'
_journal_page_first              6245
_journal_page_last               6256
_journal_paper_doi               10.1021/acs.inorgchem.5b00443
_journal_volume                  54
_journal_year                    2015
_chemical_formula_moiety         'C34 H28 Br4 Cu4 N2 P2, 2(C2 H3 N)'
_chemical_formula_sum            'C38 H34 Br4 Cu4 N4 P2'
_chemical_formula_weight         1182.43
_chemical_name_systematic
; 
 ? 
;
_space_group_crystal_system      triclinic
_space_group_IT_number           2
_space_group_name_Hall           '-P 1'
_space_group_name_H-M_alt        'P -1'
_symmetry_space_group_name_Hall  '-P 1'
_symmetry_space_group_name_H-M   'P -1'
_atom_sites_solution_hydrogens   geom
_audit_creation_date             2014-01-27
_audit_creation_method
; 
Olex2 1.2 
(compiled 2013.12.10 svn.r2850 for OlexSys, GUI svn.r4736) 
;
_cell_angle_alpha                82.691(4)
_cell_angle_beta                 83.331(4)
_cell_angle_gamma                84.702(4)
_cell_formula_units_Z            1
_cell_length_a                   7.3568(17)
_cell_length_b                   10.471(3)
_cell_length_c                   13.330(3)
_cell_measurement_reflns_used    3221
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      23.872
_cell_measurement_theta_min      2.356
_cell_volume                     1008.5(4)
_computing_cell_refinement       'Bruker SAINT'
_computing_data_collection       'Bruker APEX2'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'Olex2 (Dolomanov et al., 2009)'
_computing_publication_material  'Olex2 (Dolomanov et al., 2009)'
_computing_structure_refinement  'SHELXL-2013 (Sheldrick, 2013)'
_computing_structure_solution    'SHELXS-97 (Sheldrick 2008)'
_diffrn_ambient_temperature      100.15
_diffrn_measured_fraction_theta_full 0.973
_diffrn_measured_fraction_theta_max 1.000
_diffrn_measurement_device_type  'Bruker APEX-II CCD'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0666
_diffrn_reflns_av_unetI/netI     0.0520
_diffrn_reflns_laue_measured_fraction_full 0.973
_diffrn_reflns_laue_measured_fraction_max 1.000
_diffrn_reflns_limit_h_max       8
_diffrn_reflns_limit_h_min       -8
_diffrn_reflns_limit_k_max       12
_diffrn_reflns_limit_k_min       -12
_diffrn_reflns_limit_l_max       15
_diffrn_reflns_limit_l_min       -15
_diffrn_reflns_number            16676
_diffrn_reflns_point_group_measured_fraction_full 0.973
_diffrn_reflns_point_group_measured_fraction_max 1.000
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         25.000
_diffrn_reflns_theta_min         1.549
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    6.155
_exptl_absorpt_correction_T_max  0.7452
_exptl_absorpt_correction_T_min  0.5053
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
SADABS-2012/1 (Bruker,2012) was used for absorption correction. 
wR2(int) was 0.1155 before and 0.0628 after correction. 
The Ratio of minimum to maximum transmission is 0.6781. 
The I/2 correction factor is 0.0015.' 
;
_exptl_crystal_colour            colourless
_exptl_crystal_colour_primary    colourless
_exptl_crystal_density_diffrn    1.947
_exptl_crystal_description       Block
_exptl_crystal_F_000             576
_exptl_crystal_size_max          0.226
_exptl_crystal_size_mid          0.083
_exptl_crystal_size_min          0.049
_refine_diff_density_max         3.173
_refine_diff_density_min         -0.872
_refine_diff_density_rms         0.203
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.000
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     236
_refine_ls_number_reflns         3555
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.000
_refine_ls_R_factor_all          0.0646
_refine_ls_R_factor_gt           0.0520
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.1035P)^2^] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1371
_refine_ls_wR_factor_ref         0.1447
_reflns_Friedel_coverage         0.000
_reflns_number_gt                2897
_reflns_number_total             3555
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            ic5b00443_si_002.cif
_cod_data_source_block           kc137_0m
_cod_depositor_comments
'Adding full bibliography for 4343305--4343312.cif.'
_cod_database_code               4343310
_shelxl_version_number           2013-4
_shelx_estimated_absorpt_t_max   0.752
_shelx_estimated_absorpt_t_min   0.337
_olex2_refinement_description
; 
1. Fixed Uiso 
 At 1.2 times of: 
  All C(H) groups 
 At 1.5 times of: 
  All C(H,H,H) groups 
2.a Aromatic/amide H refined with riding coordinates: 
 C2(H2), C3(H3), C4(H4), C5(H5), C6(H6), C8(H8), C9(H9), C10(H10), C11(H11), 
 C12(H12), C14(H14), C15(H15), C16(H16), C17(H17) 
2.b Idealised Me refined as rotating group: 
 C2S(H2Sa,H2Sb,H2Sc) 
;