Polymorph and isomer conversion of complexes based on CuI and PPh3 easily observed via luminescence.
Maini, Lucia; Braga, Dario; Mazzeo, Paolo P.; Ventura, Barbara; Dalton transactions (Cambridge, England : 2003) 41 (2012) 531–539; doi:10.1039/c1dt11462j

data_7017797
_publ_section_title
;
 Polymorph and isomer conversion of complexes based on CuI and PPh3 easily
 observed via luminescence.
;
_journal_issue                   2
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              531
_journal_page_last               539
_journal_paper_doi               10.1039/c1dt11462j
_journal_volume                  41
_journal_year                    2012
_chemical_formula_sum            'C72 H60 Cu4 I4 P4'
_chemical_formula_weight         1811.85
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2yn'
_symmetry_space_group_name_H-M   'P 1 21/n 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_audit_update_record
;
2011-06-28 # Formatted by publCIF
;
_cell_angle_alpha                90.00
_cell_angle_beta                 99.531(7)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   13.4237(10)
_cell_length_b                   26.406(3)
_cell_length_c                   19.4266(11)
_cell_measurement_reflns_used    13001
_cell_measurement_temperature    90(2)
_cell_measurement_theta_max      29.1157
_cell_measurement_theta_min      2.7734
_cell_volume                     6791.0(10)
_computing_cell_refinement
;
CrysAlisPro, Oxford Diffraction Ltd.,
Version 1.171.34.44 (release 25-10-2010 CrysAlis171 .NET)
(compiled Oct 25 2010,18:11:34)
;
_computing_data_collection
;
CrysAlisPro, Oxford Diffraction Ltd.,
Version 1.171.34.44 (release 25-10-2010 CrysAlis171 .NET)
(compiled Oct 25 2010,18:11:34)
;
_computing_data_reduction
;
CrysAlisPro, Oxford Diffraction Ltd.,
Version 1.171.34.44 (release 25-10-2010 CrysAlis171 .NET)
(compiled Oct 25 2010,18:11:34)
;
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      90(2)
_diffrn_measured_fraction_theta_full 0.993
_diffrn_measured_fraction_theta_max 0.849
_diffrn_measurement_device_type  'Xcalibur, Sapphire3'
_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  0.0998
_diffrn_reflns_av_sigmaI/netI    0.0921
_diffrn_reflns_limit_h_max       18
_diffrn_reflns_limit_h_min       -14
_diffrn_reflns_limit_k_max       35
_diffrn_reflns_limit_k_min       -35
_diffrn_reflns_limit_l_max       25
_diffrn_reflns_limit_l_min       -26
_diffrn_reflns_number            35458
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         29.18
_diffrn_reflns_theta_min         2.78
_exptl_absorpt_coefficient_mu    3.189
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.772
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             3524
_exptl_crystal_size_max          0.1
_exptl_crystal_size_mid          0.08
_exptl_crystal_size_min          0.07
_refine_diff_density_max         1.259
_refine_diff_density_min         -1.182
_refine_diff_density_rms         0.204
_refine_ls_extinction_coef       0.00004(4)
_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   1.038
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     758
_refine_ls_number_reflns         15590
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.038
_refine_ls_R_factor_all          0.0584
_refine_ls_R_factor_gt           0.0463
_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^)+(0.0382P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1026
_refine_ls_wR_factor_ref         0.1117
_reflns_number_gt                12905
_reflns_number_total             15590
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c1dt11462j.txt
_cod_data_source_block           shelxl1
_cod_original_cell_volume        6791.0(9)
_cod_database_code               7017797