Preparation and properties of a series of structurally diverse aluminium hydrides supported by β-diketiminate and bis(amide) ligands.
Nako, Adi E.; Gates, Sarah J.; White, Andrew J. P.; Crimmin, Mark R.; Dalton transactions (Cambridge, England : 2003) 42 (2013) 15199–15206; doi:10.1039/c3dt52148f

data_7023790
_publ_section_title
;
 Preparation and properties of a series of structurally diverse aluminium
 hydrides supported by \b-diketiminate and bis(amide) ligands.
;
_journal_issue                   42
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              15199
_journal_page_last               15206
_journal_paper_doi               10.1039/c3dt52148f
_journal_volume                  42
_journal_year                    2013
_chemical_formula_moiety         'C27 H31 Al N2'
_chemical_formula_sum            'C27 H31 Al N2'
_chemical_formula_weight         410.52
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           62
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  '-P 2ac 2n'
_symmetry_space_group_name_H-M   'P n m a'
_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                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   14.3480(3)
_cell_length_b                   18.1039(4)
_cell_length_c                   9.2139(2)
_cell_measurement_reflns_used    6709
_cell_measurement_temperature    173
_cell_measurement_theta_max      32.6037
_cell_measurement_theta_min      3.0482
_cell_volume                     2393.35(9)
_computing_cell_refinement       'CrysAlis RED, Oxford Diffraction Ltd'
_computing_data_collection       'CrysAlis CCD, Oxford Diffraction Ltd'
_computing_data_reduction        'CrysAlis RED, Oxford Diffraction Ltd'
_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
_diffrn_detector_area_resol_mean 15.9825
_diffrn_measured_fraction_theta_full 0.989
_diffrn_measured_fraction_theta_max 0.942
_diffrn_measurement_device_type  'OD Xcalibur 3'
_diffrn_measurement_method       'omega scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'Enhance (Mo) X-ray Source'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0232
_diffrn_reflns_av_sigmaI/netI    0.0174
_diffrn_reflns_limit_h_max       19
_diffrn_reflns_limit_h_min       -21
_diffrn_reflns_limit_k_max       24
_diffrn_reflns_limit_k_min       -26
_diffrn_reflns_limit_l_max       13
_diffrn_reflns_limit_l_min       -8
_diffrn_reflns_number            26614
_diffrn_reflns_theta_full        31.50
_diffrn_reflns_theta_max         32.68
_diffrn_reflns_theta_min         3.46
_exptl_absorpt_coefficient_mu    0.100
_exptl_absorpt_correction_T_max  0.993
_exptl_absorpt_correction_T_min  0.971
_exptl_absorpt_correction_type   analytical
_exptl_absorpt_process_details
; 
CrysAlisPro, Agilent Technologies, 
Version 1.171.35.15 (release 03-08-2011 CrysAlis171 .NET) 
(compiled Aug  3 2011,13:03:54) 
Analytical numeric absorption correction using a multifaceted crystal 
model based on expressions derived by R.C. Clark & J.S. Reid. 
(Clark, R. C. & Reid, J. S. (1995). Acta Cryst. A51, 887-897) 
;
_exptl_crystal_colour            Colourless
_exptl_crystal_density_diffrn    1.139
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       tablets
_exptl_crystal_F_000             880
_exptl_crystal_size_max          0.39
_exptl_crystal_size_mid          0.38
_exptl_crystal_size_min          0.11
_refine_diff_density_max         0.323
_refine_diff_density_min         -0.217
_refine_diff_density_rms         0.046
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.044
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     165
_refine_ls_number_reflns         4247
_refine_ls_number_restraints     96
_refine_ls_restrained_S_all      1.045
_refine_ls_R_factor_all          0.0736
_refine_ls_R_factor_gt           0.0525
_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^)+(0.0848P)^2^+0.4672P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1480
_refine_ls_wR_factor_ref         0.1617
_reflns_number_gt                3172
_reflns_number_total             4247
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c3dt52148f.txt
_cod_data_source_block           6
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Orthorhombic' changed to
'orthorhombic' according to
/home/saulius/struct/CIF-dictionaries/cif_core.dic dictionary named
'cif_core.dic' version 2.4.2 from 2011-04-26.

Automatic conversion script
Id: cif_fix_values 1891 2012-01-12 08:04:46Z andrius 
;
_cod_original_sg_symbol_H-M      Pnma
_cod_database_code               7023790