#------------------------------------------------------------------------------
#$Date: 2012-02-03 17:16:24 +0000 (Fri, 03 Feb 2012) $
#$Revision: 32112 $
#$URL: svn://www.crystallography.net/cod/cif/2/10/09/2100927.cif $
#------------------------------------------------------------------------------
#
# This file is available in the Crystallography Open Database (COD),
# http://www.crystallography.net/. The original data for this entry
# were provided by IUCr Journals, http://journals.iucr.org/.
#
# The file may be used within the scientific community so long as
# proper attribution is given to the journal article from which the
# data were obtained.
#
data_2100927
loop_
_publ_author_name
'Wijayaratne, T.'
'Collins, N.'
'Li, Y.'
'Bruck, M. A.'
'Polt, R.'
_publ_section_title
;
 \b-Alkoxy Schiff base--oxazolidine tautomerism: solid-state structure
 of <i>N</i>-diphenylmethylene-<small>L</small>-threonine methyl ester
;
_journal_issue                   2
_journal_name_full               'Acta Crystallographica Section B'
_journal_page_first              316
_journal_page_last               320
_journal_volume                  49
_journal_year                    1993
_chemical_formula_sum            'C18 H19 N O3'
_chemical_formula_weight         297.36
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  'P 2ac 2ab'
_symmetry_space_group_name_H-M   'P 21 21 21'
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   8.455(2)
_cell_length_b                   12.648(2)
_cell_length_c                   14.650(3)
_cell_volume                     1566.7(5)
_diffrn_radiation_type           Mo
_diffrn_radiation_wavelength     0.71073
_exptl_absorpt_coefficient_mu    0.08
_exptl_crystal_density_diffrn    1.26
_exptl_crystal_F_000             632
_[local]_cod_data_source_file    hh0625.cif
_[local]_cod_data_source_block   hh0625a
_[local]_cod_chemical_formula_sum_orig 'C18 H19 N1 O3'
_cod_original_cell_volume        1566.6(5)
_cod_database_code               2100927
loop_
_atom_site_label
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
O1 .2231(3) .7595(2) .44070(10)
O2 .4408(3) .7840(3) .3571(2)
O3 .1665(3) .8629(2) .15650(10)
N .0432(3) .8009(2) .2864(2)
C1 .3142(5) .7746(4) .5229(2)
C2 .3012(4) .7676(3) .3626(2)
C3 .1945(4) .7463(3) .2809(2)
C4 .2682(4) .7811(3) .1897(2)
C5 .2761(6) .6947(3) .1190(3)
C6 .0627(4) .8941(2) .2295(2)
C7 -.0928(4) .9290(2) .1893(2)
C8 -.1056(5) .9587(3) .0981(2)
C9 -.2505(6) .9919(4) .0639(3)
C10 -.3814(5) .9983(3) .1193(3)
C11 -.3692(5) .9688(3) .2101(3)
C12 -.2261(4) .9351(3) .2439(3)
C13 .1388(4) .9847(2) .2828(2)
C14 .1176(5) .9958(3) .3761(2)
C15 .1842(5) 1.0803(3) .4226(3)
C16 .2700(5) 1.1549(3) .3756(3)
C17 .2904(4) 1.1457(3) .2831(3)
C18 .2246(4) 1.0610(3) .2371(3)
H(N) -.032(5) .753(3) .265(3)
H1 .249 .767 .575
H1' .396 .723 .524
H1'' .359 .843 .522
H3 .181 .672 .282
H4 .374 .803 .200
H5 .322 .722 .065
H5' .339 .638 .142
H5'' .172 .670 .106
H14 .057 .945 .409
H15 .171 1.087 .487
H16 .315 1.213 .407
H17 .350 1.197 .251
H18 .239 1.055 .173
H8 -.016 .955 .059
H9 -.259 1.011 .001
H10 -.480 1.022 .095
H11 -.459 .972 .249
H12 -.218 .915 .306
loop_
_geom_bond_atom_site_label_1
_geom_bond_atom_site_label_2
_geom_bond_distance
O1 C1 1.441(4)
O1 C2 1.325(4)
O2 C2 1.200(4)
O3 C4 1.430(4)
O3 C6 1.440(4)
N C3 1.456(4)
N C6 1.453(4)
C2 C3 1.524(5)
C3 C4 1.538(4)
C4 C5 1.507(5)
C6 C7 1.507(4)
C6 C13 1.528(4)
N H(N) .93(5)
C1 H1 .950(4)
C1 H1' .950(5)
C1 H1'' .950(5)
C3 H3 .950(3)
C4 H4 .950(3)
C5 H5 .950(4)
C5 H5' .950(4)
C5 H5'' .950(5)
C8 H8 .950(4)
C7 C8 1.392(5)
C7 C12 1.384(5)
C8 C9 1.389(6)
C9 C10 1.374(7)
C10 C11 1.385(6)
C11 C12 1.375(5)
C13 C14 1.387(4)
C13 C18 1.380(4)
C14 C15 1.387(5)
C15 C16 1.374(6)
C16 C17 1.372(5)
C17 C18 1.382(5)
C9 H9 .950(4)
C10 H10 .950(4)
C11 H11 .950(4)
C12 H12 .950(4)
C14 H14 .950(4)
C15 H15 .950(4)
C16 H16 .950(4)
C17 H17 .950(4)
C18 H18 .950(4)
loop_
_geom_angle_atom_site_label_1
_geom_angle_atom_site_label_2
_geom_angle_atom_site_label_3
_geom_angle
C1 O1 C2 116.4(3)
C4 O3 C6 108.2(2)
C3 N C6 104.7(2)
O1 C2 O2 124.2(3)
O1 C2 C3 111.7(3)
O2 C2 C3 124.0(3)
N C3 C2 113.1(2)
N C3 C4 105.6(2)
C2 C3 C4 113.1(3)
O3 C4 C3 105.0(2)
O3 C4 C5 108.5(3)
C3 C4 C5 114.0(3)
O3 C6 N 105.8(2)
O3 C6 C7 108.8(2)
O3 C6 C13 109.2(3)
N C6 C7 111.3(3)
N C6 C13 111.3(2)
C3 N HN 106.(3)
C6 N HN 114.(3)
O1 C1 H1 110.6(4)
O1 C1 H1' 108.7(3)
O1 C1 H1'' 109.1(4)
H1 C1 H1' 109.5(4)
H1 C1 H1'' 109.5(4)
H1' C1 H1'' 109.5(4)
N C3 H3 111.3(3)
C2 C3 H3 103.2(3)
C4 C3 H3 110.7(3)
O3 C4 H4 114.4(3)
C3 C4 H4 109.4(3)
C5 C4 H4 105.8(3)
C4 C5 H5 109.6(3)
C4 C5 H5' 109.3(3)
C4 C5 H5'' 109.5(3)
H5 C5 H5' 109.5(4)
H5 C5 H5'' 109.5(4)
H5' C5 H5'' 109.5(4)
C7 C6 C13 110.3(2)
C6 C7 C8 121.5(3)
C6 C7 C12 120.0(3)
C8 C7 C12 118.5(3)
C7 C8 C9 119.7(4)
C8 C9 C10 121.0(4)
C9 C10 C11 119.4(4)
C10 C11 C12 119.6(4)
C7 C12 C11 121.7(3)
C6 C13 C14 121.6(3)
C6 C13 C18 119.9(3)
C14 C13 C18 118.4(3)
C13 C14 C15 120.6(4)
C14 C15 C16 119.9(4)
C15 C16 C17 120.2(4)
C16 C17 C18 119.8(4)
C13 C18 C17 121.1(3)
C7 C8 H8 119.9(4)
C9 C8 H8 120.4(4)
C8 C9 H9 119.5(5)
C10 C9 H9 119.5(5)
C9 C10 H10 120.3(5)
C11 C10 H10 120.3(5)
C10 C11 H11 120.3(4)
C12 C11 H11 120.1(4)
C7 C12 H12 118.9(3)
C11 C12 H12 119.4(4)
C13 C14 H14 119.7(3)
C15 C14 H14 119.7(3)
C14 C15 H15 120.1(4)
C16 C15 H15 120.0(4)
C15 C16 H16 119.9(4)
C17 C16 H16 119.9(4)
C16 C17 H17 120.2(4)
C18 C17 H17 120.0(4)
C13 C18 H18 119.4(3)
C17 C18 H18 119.5(3)