An Acyclic Dimer of Cyclodiphosphazane {tBuHN(tBuNP)2OCH2}2 Containing Alkoxo and Amido Functionalities: Synthesis, Derivatization, Bi- (PdII, RhI), and Tetranuclear (PdII, AuI, RhIAuI) Transition Metal Complexes
Maravanji S. Balakrishna; Ramalingam Venkateswaran; Joel T. Mague; Inorganic Chemistry 48 (2009) 1398–1406; doi:10.1021/ic801256h

data_4301402
_publ_section_title
;
An Acyclic Dimer of Cyclodiphosphazane {tBuHN(tBuNP)2OCH2}2 Containing
Alkoxo and Amido Functionalities: Synthesis, Derivatization, Bi- (PdII,
RhI), and Tetranuclear (PdII, AuI, RhIAuI) Transition Metal Complexes
;
_journal_name_full               'Inorganic Chemistry'
_journal_page_first              1398
_journal_page_last               1406
_journal_paper_doi               10.1021/ic801256h
_journal_volume                  48
_journal_year                    2009
_chemical_formula_moiety         'C26 H60 N6 O2 P4'
_chemical_formula_sum            'C26 H60 N6 O2 P4'
_chemical_formula_weight         612.68
_chemical_name_systematic
; 
 1,2-Bis(1,3-di-tert-butyl-4-tert-butylamino[1,3,2,4]
diazadiphosphetidin-2-oxy)ethane
;
_space_group_IT_number           7
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  'P -2yac'
_symmetry_space_group_name_H-M   'P 1 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                 94.896(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            2
_cell_length_a                   9.760(1)
_cell_length_b                   11.932(1)
_cell_length_c                   15.511(2)
_cell_measurement_reflns_used    8457
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      28.26
_cell_measurement_theta_min      2.38
_cell_volume                     1799.8(3)
_computing_cell_refinement       'Bruker SMART (Bruker-AXS, 2000)'
_computing_data_collection       'Bruker SMART (Bruker-AXS, 2000)'
_computing_data_reduction        'Bruker SAINT+ (Bruker-AXS, 2004)'
_computing_molecular_graphics    'Bruker SHELXTL (Bruker-AXS, 2000a)'
_computing_publication_material  'Bruker SHELXTL (Bruker-AXS, 2000a)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1997)'
_diffrn_ambient_temperature      100(2)
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.999
_diffrn_measurement_device_type  'Bruker-AXS Smart APEX 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  0.0422
_diffrn_reflns_av_sigmaI/netI    0.0424
_diffrn_reflns_limit_h_max       12
_diffrn_reflns_limit_h_min       -12
_diffrn_reflns_limit_k_max       15
_diffrn_reflns_limit_k_min       -15
_diffrn_reflns_limit_l_max       20
_diffrn_reflns_limit_l_min       -20
_diffrn_reflns_number            31126
_diffrn_reflns_theta_full        28.30
_diffrn_reflns_theta_max         28.30
_diffrn_reflns_theta_min         2.16
_exptl_absorpt_coefficient_mu    0.240
_exptl_absorpt_correction_T_max  0.9610
_exptl_absorpt_correction_T_min  0.9265
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS (Sheldrick, 2002)'
_exptl_crystal_colour            Colorless
_exptl_crystal_density_diffrn    1.131
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       Block
_exptl_crystal_F_000             668
_exptl_crystal_size_max          0.23
_exptl_crystal_size_mid          0.18
_exptl_crystal_size_min          0.17
_refine_diff_density_max         0.406
_refine_diff_density_min         -0.180
_refine_diff_density_rms         0.054
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.02(5)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.029
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     368
_refine_ls_number_reflns         8669
_refine_ls_number_restraints     5
_refine_ls_restrained_S_all      1.034
_refine_ls_R_factor_all          0.0420
_refine_ls_R_factor_gt           0.0388
_refine_ls_shift/su_max          0.006
_refine_ls_shift/su_mean         0.001
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0564P)^2^] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0896
_refine_ls_wR_factor_ref         0.0915
_reflns_number_gt                8144
_reflns_number_total             8669
_reflns_threshold_expression     >2\s(I)
_cod_data_source_file            ic801256h_si_001_1.cif
_cod_data_source_block           msb235
_cod_depositor_comments
;
The following automatic conversions were performed:
'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
according to '/home/saulius/struct/CIF-dictionaries/cif_core.dic'
dictionary named 'cif_core.dic' version 2.4.1 from 2010-06-29.

Automatic conversion script
Id: cif_fix_enum 1527 2010-12-29 10:47:43Z saulius 
;
_cod_original_cell_volume        1799.7(3)
_cod_original_sg_symbol_H-M      'P n'
_cod_database_code               4301402