New cadinane sesquiterpenoids from the basidiomycetous fungus Pholiota sp.
Lin, Jie; Wang, Renlei; Xu, Guohua; Ding, Zhengfeng; Zhu, Xueshen; Liu, Xingzhong; Zou, Jian; Chen, Guodong; Li, Li; Liu, Ling; RSC Adv.  (2016) –; doi:10.1039/C6RA22448B

data_7227177
_publ_section_title
;
 New cadinane sesquiterpenoids from the basidiomycetous fungus Pholiota
 sp.
;
_journal_name_full               'RSC Adv.'
_journal_paper_doi               10.1039/C6RA22448B
_journal_year                    2016
_chemical_absolute_configuration unk
_chemical_formula_sum            'C15 H24 O5'
_chemical_formula_weight         284.34
_space_group_IT_number           19
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  'P 2ac 2ab'
_symmetry_space_group_name_H-M   'P 21 21 21'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_audit_update_record
;
2012-01-09 deposited with the CCDC.
2016-11-09 downloaded from the CCDC.
;
_cell_angle_alpha                90.00
_cell_angle_beta                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   5.5709(11)
_cell_length_b                   15.994(3)
_cell_length_c                   16.547(3)
_cell_measurement_reflns_used    4972
_cell_measurement_temperature    173(2)
_cell_measurement_theta_max      27.48
_cell_measurement_theta_min      2.46
_cell_volume                     1474.4(5)
_computing_cell_refinement       'CrystalClear (Rigaku Inc., 2008)'
_computing_data_collection       'CrystalClear (Rigaku Inc., 2008)'
_computing_data_reduction        'CrystalClear (Rigaku Inc., 2008)'
_computing_molecular_graphics
;
Mercury: visualization and analysis of crystal structures, C. F. Macrae,
P. R. Edgington, P. McCabe, E. Pidcock, G. P. Shields, R. Taylor,
M. Towler and J. van de Streek, J. Appl. Cryst., 39, 453-457, 2006.
;
_computing_publication_material  'SHELX-97 (Sheldrick, 1997)'
_computing_structure_refinement  'SHELX-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELX-97 (Sheldrick, 1997)'
_diffrn_ambient_temperature      173(2)
_diffrn_detector_area_resol_mean 28.5714
_diffrn_measured_fraction_theta_full 0.990
_diffrn_measured_fraction_theta_max 0.990
_diffrn_measurement_device_type  'MM007HF + CCD (Saturn724+)'
_diffrn_measurement_method       '\w scans at fixed \c = 45\%'
_diffrn_radiation_monochromator  Confocal
_diffrn_radiation_source         'Rotating Anode'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0617
_diffrn_reflns_av_sigmaI/netI    0.0338
_diffrn_reflns_limit_h_max       6
_diffrn_reflns_limit_h_min       -7
_diffrn_reflns_limit_k_max       20
_diffrn_reflns_limit_k_min       -20
_diffrn_reflns_limit_l_max       21
_diffrn_reflns_limit_l_min       -20
_diffrn_reflns_number            13237
_diffrn_reflns_theta_full        27.48
_diffrn_reflns_theta_max         27.48
_diffrn_reflns_theta_min         2.46
_exptl_absorpt_coefficient_mu    0.095
_exptl_absorpt_correction_T_max  0.9887
_exptl_absorpt_correction_T_min  0.9785
_exptl_absorpt_correction_type   numerical
_exptl_absorpt_process_details   'CrystalClear (Rigaku Inc., 2008)'
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.281
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       plate
_exptl_crystal_F_000             616
_exptl_crystal_size_max          0.23
_exptl_crystal_size_mid          0.14
_exptl_crystal_size_min          0.12
_refine_diff_density_max         0.159
_refine_diff_density_min         -0.182
_refine_diff_density_rms         0.042
_refine_ls_abs_structure_details
;
Flack parameter cannot be determined correctly because the crystal consists of
light atoms only, and because the radiation is MoK\a. In the final stage of
structure refinement with SHELXL, MERG 3 card was used, i.e. Friedel pairs
were merged.

Flack H D (1983), Acta Cryst. A39, 876-881
;
_refine_ls_abs_structure_Flack   -0.6(15)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.110
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     204
_refine_ls_number_reflns         1947
_refine_ls_number_restraints     38
_refine_ls_restrained_S_all      1.106
_refine_ls_R_factor_all          0.0471
_refine_ls_R_factor_gt           0.0450
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0499P)^2^+0.3929P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1089
_refine_ls_wR_factor_ref         0.1104
_reflns_number_gt                1885
_reflns_number_total             1947
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c6ra22448b2.cif
_cod_data_source_block           mx382
_cod_original_sg_symbol_H-M      P2(1)2(1)2(1)
_cod_database_code               7227177