Asymmetric general base catalysis of the phospho-aldol reaction via dimeric aluminium hydroxides.
Gledhill, Alexandra C.; Cosgrove, Nichola E.; Nixon, Tracy D.; Kilner, Colin A.; Fisher, Julie; Kee, Terence P.; Dalton transactions (Cambridge, England : 2003) 39 (2010) 9472–9475; doi:10.1039/c0dt00459f

data_7026472
_publ_section_title
;
 Asymmetric general base catalysis of the phospho-aldol reaction via
 dimeric aluminium hydroxides.
;
_journal_issue                   40
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              9472
_journal_page_last               9475
_journal_paper_doi               10.1039/c0dt00459f
_journal_volume                  39
_journal_year                    2010
_chemical_absolute_configuration rmad
_chemical_formula_moiety         'C56 H82 Al2 N4 O6, 4(C6 H5 Cl)'
_chemical_formula_sum            'C80 H102 Al2 Cl4 N4 O6'
_chemical_formula_weight         1411.42
_chemical_name_systematic
;
?
;
_space_group_IT_number           4
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  'P 2yb'
_symmetry_space_group_name_H-M   'P 1 21 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                 100.3000(3)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   11.79800(10)
_cell_length_b                   31.2880(2)
_cell_length_c                   20.6198(2)
_cell_measurement_reflns_used    143270
_cell_measurement_temperature    150(2)
_cell_measurement_theta_max      27.48
_cell_measurement_theta_min      1.00
_cell_volume                     7488.85(11)
_computing_cell_refinement       'DENZO-SMN (Otwinowski & Minor, 1996)'
_computing_data_collection       COLLECT
_computing_data_reduction
;
DENZO-SMN and COLLECT (Otwinowski & Minor, 1996)
;
_computing_molecular_graphics    ORTEP-III
_computing_publication_material  'local program'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1997)'
_diffrn_ambient_temperature      150(2)
_diffrn_detector_area_resol_mean 9
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.998
_diffrn_measurement_device_type
;
Nonius KappaCCD area-detector diffractometer
;
_diffrn_measurement_method
;
phi and omega scans to fill the asymmetric unit
;
_diffrn_radiation_detector       'CCD plate'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_probe          x-ray
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0641
_diffrn_reflns_av_sigmaI/netI    0.0540
_diffrn_reflns_limit_h_max       14
_diffrn_reflns_limit_h_min       -14
_diffrn_reflns_limit_k_max       38
_diffrn_reflns_limit_k_min       -37
_diffrn_reflns_limit_l_max       25
_diffrn_reflns_limit_l_min       -25
_diffrn_reflns_number            90149
_diffrn_reflns_theta_full        26.00
_diffrn_reflns_theta_max         26.00
_diffrn_reflns_theta_min         2.50
_diffrn_standards_decay_%        0
_diffrn_standards_interval_count 0
_diffrn_standards_interval_time  0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.236
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.252
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       fragment
_exptl_crystal_F_000             3008
_exptl_crystal_size_max          0.27
_exptl_crystal_size_mid          0.18
_exptl_crystal_size_min          0.09
_refine_diff_density_max         1.819
_refine_diff_density_min         -1.285
_refine_diff_density_rms         0.093
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.08(8)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.038
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           fullcycle
_refine_ls_number_parameters     1502
_refine_ls_number_reflns         29189
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.038
_refine_ls_R_factor_all          0.0986
_refine_ls_R_factor_gt           0.0855
_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^)+(0.1562P)^2^+8.7164P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.2321
_refine_ls_wR_factor_ref         0.2457
_reflns_number_gt                25135
_reflns_number_total             29189
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c0dt00459f.txt
_cod_data_source_block           tdn310revised20100729
_cod_original_sg_symbol_H-M      P21
_cod_database_code               7026472