#------------------------------------------------------------------------------
#$Date: 2008-01-26 13:05:32 +0000 (Sat, 26 Jan 2008) $
#$Revision: 19 $
#$URL: svn://www.crystallography.net/cod/cif/2/2005473.cif $
#------------------------------------------------------------------------------
#
# This file is available in the Crystallography Open Database (COD),
# http://www.crystallography.net/
#
# All data on this site have been placed in the public domain by the
# contributors.
#
data_2005473
_journal_name_full  'Acta Crystallographica'
_journal_year       1996
_journal_volume    	C52
_journal_page_first    	2615
_journal_page_last    	2616
_publ_section_title    	
;
3'-Deoxy-2',3'-difluorothymidine, a Nucleoside Analogue
;
_chemical_formula_sum    	'C10 H12 F2 N2 O4'
_chemical_formula_weight    	262.21
_symmetry_cell_setting    	orthorhombic
loop_
_symmetry_equiv_pos_as_xyz
    'x,y,z'
    '1/2-x,-y,1/2+z'
    '-x,1/2+y,1/2-z'
    '1/2+x,1/2-y,-z'
_symmetry_space_group_name_H-M    	'P 21 21 21'
_cell_length_a    	4.837(1)
_cell_length_b    	13.296(1)
_cell_length_c    	18.240(1)
_cell_angle_alpha    	90.
_cell_angle_beta    	90.
_cell_angle_gamma    	90.
_cell_volume    	1173.1(3)
_cell_formula_units_Z    	4
_exptl_crystal_density_diffrn    	1.485
_exptl_crystal_density_meas    	1.478
_cell_measurement_temperature    	293
loop_
_atom_site_label
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
_atom_site_u_iso_or_equiv
    N1 .4235(4) .8200(1) .2153(1) .0339(5)
    C2 .3391(5) .7596(1) .1585(1) .0354(6)
    N3 .4672(5) .7787(1) .0930(1) .0412(5)
    C4 .6710(6) .8491(1) .0798(1) .0385(6)
    C5 .7367(5) .9152(2) .1405(1) .0349(6)
    C6 .6120(5) .8974(1) .2047(1) .0329(5)
    O2 .1645(4) .6937(1) .1653(1) .0518(5)
    O4 .7810(6) .8543(1) .0191(1) .0612(7)
    C7 .9387(6) .9991(2) .1295(2) .0488(8)
    C1' .3098(4) .8026(2) .2882(1) .0329(6)
    C2' .5261(5) .7829(2) .3468(1) .0369(6)
    C3' .3839(6) .8192(2) .4155(1) .0427(7)
    C4' .2196(5) .9091(2) .3888(1) .0386(6)
    O4' .1690(3) .8907(1) .3113(1) .0372(4)
    C5' .3568(5) 1.0090(2) .3988(1) .0469(7)
    O5' .6309(4) 1.0021(1) .3711(1) .0514(5)
    F1' .5969(4) .6826(1) .3492(1) .0656(6)
    F2' .1991(5) .7442(1) .4376(1) .0721(6)
    H3 .415(7) .743(2) .062(1) .048(7)
    H6 .645(5) .938(2) .248(1) .035(6)
    H71 1.116(9) .974(3) .111(2) .081(11)
    H72 .848(10) 1.044(3) .095(2) .083(11)
    H73 .975(12) 1.037(3) .177(2) .121(16)
    H1' .193(7) .742(2) .287(2) .057(8)
    H2' .685(6) .823(2) .338(1) .029(5)
    H3' .509(7) .834(2) .454(2) .051(8)
    H4' .024(7) .915(2) .414(1) .049(7)
    H51' .238(8) 1.057(3) .368(2) .073(11)
    H52' .353(7) 1.023(2) .455(2) .059(8)
    H5' .688(9) 1.062(3) .368(2) .073(11)