Secondary diphosphine and diphosphido ligands: synthesis, characterisation and group 1 coordination compounds.
Ritch, Jamie S.; Julienne, Delphine; Rybchinski, Shayne R.; Brockman, Kathryne S.; Johnson, Kevin R. D.; Hayes, Paul G.; Dalton transactions (Cambridge, England : 2003) 43 (2014) 267–276; doi:10.1039/c3dt51844b

data_7029232
_publ_section_title
;
 Secondary diphosphine and diphosphido ligands: synthesis,
 characterisation and group 1 coordination compounds.
;
_journal_issue                   1
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              267
_journal_page_last               276
_journal_paper_doi               10.1039/c3dt51844b
_journal_volume                  43
_journal_year                    2014
_chemical_formula_moiety         'C44 H84 Li4 N4 P4'
_chemical_formula_sum            'C44 H84 Li4 N4 P4'
_chemical_formula_weight         820.79
_chemical_name_systematic
; 
 ? 
;
_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
_cell_angle_alpha                90.00
_cell_angle_beta                 113.0830(10)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   16.3704(3)
_cell_length_b                   19.8946(4)
_cell_length_c                   17.4380(3)
_cell_measurement_reflns_used    40844
_cell_measurement_temperature    173(2)
_cell_measurement_theta_max      25.03
_cell_measurement_theta_min      2.41
_cell_volume                     5224.56(17)
_computing_cell_refinement       'Bruker SMART'
_computing_data_collection       'Bruker SMART'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      173(2)
_diffrn_measured_fraction_theta_full 0.997
_diffrn_measured_fraction_theta_max 0.997
_diffrn_measurement_device_type  'Bruker ApexII CCD area detector'
_diffrn_measurement_method       'phi and omega 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  0.0414
_diffrn_reflns_av_sigmaI/netI    0.0468
_diffrn_reflns_limit_h_max       19
_diffrn_reflns_limit_h_min       -19
_diffrn_reflns_limit_k_max       23
_diffrn_reflns_limit_k_min       -22
_diffrn_reflns_limit_l_max       20
_diffrn_reflns_limit_l_min       -20
_diffrn_reflns_number            40844
_diffrn_reflns_theta_full        25.03
_diffrn_reflns_theta_max         25.03
_diffrn_reflns_theta_min         2.58
_exptl_absorpt_coefficient_mu    0.175
_exptl_absorpt_correction_T_max  0.7456
_exptl_absorpt_correction_T_min  0.6703
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
'Blessing, R. H. (1995) Acta Cryst. A51, 33-38'
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.044
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             1792
_exptl_crystal_size_max          0.60
_exptl_crystal_size_mid          0.20
_exptl_crystal_size_min          0.20
_refine_diff_density_max         0.363
_refine_diff_density_min         -0.270
_refine_diff_density_rms         0.045
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.020
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     525
_refine_ls_number_reflns         9222
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.020
_refine_ls_R_factor_all          0.0696
_refine_ls_R_factor_gt           0.0435
_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^)+(0.0524P)^2^+1.6801P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1010
_refine_ls_wR_factor_ref         0.1153
_reflns_number_gt                6650
_reflns_number_total             9222
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c3dt51844b.txt
_cod_data_source_block           complex8
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
according to
/usr/data/users/saulius/automatic-downloads/current/RSC/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 2281 2013-09-26 08:29:07Z andrius 
;
_cod_original_sg_symbol_H-M      P2(1)/n
_cod_database_code               7029232