data_2200868
_journal_name_full  'Acta Crystallographica, Section E'
_journal_year  2002
_journal_volume  58
_journal_page_first  o220
_journal_page_last  o221
_publ_section_title
;
Ethyl 4-oxo-2,6-diphenylpiperidine-3-carboxylate
;
loop_
_publ_author_name
  'Vijayalakshmi, L. '
  'Radhakrishnan, T. R'
_chemical_formula_moiety  'C20 H21 N O3'
_chemical_formula_sum  'C20 H21 N O3'
_chemical_formula_iupac  'C20 H21 N O3'
_chemical_formula_weight  323.38
_symmetry_cell_setting  monoclinic
_symmetry_space_group_name_H-M  'P 21/c'
loop_
_symmetry_equiv_pos_as_xyz
  'x, y, z'
  '-x, y+1/2, -z+1/2'
  '-x, -y, -z'
  'x, -y-1/2, z-1/2'
_cell_length_a  10.124(2)
_cell_length_b  7.801(3)
_cell_length_c  22.896(3)
_cell_angle_alpha  90.00
_cell_angle_beta  100.390(10)
_cell_angle_gamma  90.00
_cell_volume  1778.6(8)
_cell_formula_units_Z  4
_cell_measurement_temperature  293(2)
_exptl_crystal_density_diffrn  1.208
_diffrn_ambient_temperature  293(2)
loop_
_atom_site_label
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
_atom_site_U_iso_or_equiv
_atom_site_adp_type
_atom_site_calc_flag
_atom_site_refinement_flags
_atom_site_occupancy
_atom_site_disorder_assembly
_atom_site_disorder_group
_atom_site_type_symbol
  N1  .22618(16)  .8041(2)  .05357(7)  .0533(5) Uani d D 1 . . N
  H1  .1648(19)  .874(3)  .0662(10)  .067(7) Uiso d D 1 . . H
  C2  .35533(19)  .8391(3)  .09144(9)  .0545(5) Uani d . 1 . . C
  H2  .3805  .9584  .0858  .065 Uiso calc R 1 . . H
  C3  .46244(19)  .7192(3)  .07300(9)  .0561(6) Uani d . 1 . . C
  H3  .4429  .6019  .0842  .067 Uiso calc R 1 . . H
  O4  .56073(18)  .7240(3)  -.01393(9)  .1000(8) Uani d . 1 . . O
  C4  .4587(2)  .7226(3)  .00661(11)  .0653(6) Uani d . 1 . . C
  C5  .3229(2)  .7190(3)  -.03089(10)  .0654(6) Uani d . 1 . . C
  H5A  .2875  .6033  -.0314  .078 Uiso calc R 1 . . H
  H5B  .3300  .7492  -.0713  .078 Uiso calc R 1 . . H
  C6  .22469(19)  .8419(3)  -.00888(9)  .0534(5) Uani d . 1 . . C
  H6  .2553  .9600  -.0125  .064 Uiso calc R 1 . . H
  C7  .0858(2)  .8217(3)  -.04577(9)  .0540(5) Uani d . 1 . . C
  C8  -.0148(2)  .7309(3)  -.02593(11)  .0690(7) Uani d . 1 . . C
  H8  .0014  .6824  .0118  .083 Uiso calc R 1 . . H
  C9  -.1395(3)  .7118(4)  -.06175(14)  .0823(8) Uani d . 1 . . C
  H9  -.2066  .6517  -.0476  .099 Uiso calc R 1 . . H
  C10  -.1651(3)  .7796(4)  -.11737(14)  .0816(8) Uani d . 1 . . C
  H10  -.2486  .7643  -.1415  .098 Uiso calc R 1 . . H
  C11  -.0666(3)  .8706(4)  -.13741(13)  .0852(8) Uani d . 1 . . C
  H11  -.0835  .9189  -.1752  .102 Uiso calc R 1 . . H
  C12  .0573(2)  .8908(4)  -.10199(11)  .0715(7) Uani d . 1 . . C
  H12  .1233  .9526  -.1163  .086 Uiso calc R 1 . . H
  C13  .3464(2)  .8118(3)  .15574(9)  .0593(6) Uani d . 1 . . C
  C14  .4162(3)  .9160(4)  .19945(11)  .0830(8) Uani d . 1 . . C
  H14  .4671 1.0060  .1888  .100 Uiso calc R 1 . . H
  C15  .4119(4)  .8897(6)  .25807(14)  .1067(12) Uani d . 1 . . C
  H15  .4605  .9609  .2868  .128 Uiso calc R 1 . . H
  C16  .3372(4)  .7603(7)  .27461(13)  .1133(14) Uani d . 1 . . C
  H16  .3337  .7438  .3145  .136 Uiso calc R 1 . . H
  C17  .2670(3)  .6540(5)  .23251(14)  .1010(11) Uani d . 1 . . C
  H17  .2160  .5649  .2438  .121 Uiso calc R 1 . . H
  C18  .2719(3)  .6797(4)  .17266(11)  .0762(7) Uani d . 1 . . C
  H18  .2246  .6070  .1441  .091 Uiso calc R 1 . . H
  O31  .64336(17)  .9081(3)  .11099(10)  .0892(7) Uani d . 1 . . O
  C31  .6011(2)  .7650(3)  .10495(11)  .0673(6) Uani d . 1 . . C
  O32  .67255(18)  .6267(3)  .12460(11)  .1024(8) Uani d D 1 . . O
  C32  .7934(6)  .6683(10)  .1695(3)  .104(2) Uani d PD  .55 A 1 C
  H32A  .7921  .6105  .2069  .125 Uiso calc PR  .55 A 1 H
  H32B  .8025  .7908  .1763  .125 Uiso calc PR  .55 A 1 H
  C33  .9020(8)  .5997(19)  .1393(6)  .253(9) Uani d PDU  .55 A 1 C
  H33A  .9876  .6406  .1595  .379 Uiso calc PR  .55 A 1 H
  H33B  .8870  .6379  .0988  .379 Uiso calc PR  .55 A 1 H
  H33C  .9010  .4767  .1403  .379 Uiso calc PR  .55 A 1 H
  C32'  .8205(5)  .6432(12)  .1322(4)  .096(2) Uani d PD  .45 A 2 C
  H32C  .8465  .7332  .1073  .115 Uiso calc PR  .45 A 2 H
  H32D  .8623  .5362  .1239  .115 Uiso calc PR  .45 A 2 H
  C33'  .8541(11)  .6893(18)  .1973(4)  .158(5) Uani d PD  .45 A 2 C
  H33D  .9369  .7521  .2049  .237 Uiso calc PR  .45 A 2 H
  H33E  .8632  .5864  .2207  .237 Uiso calc PR  .45 A 2 H
  H33F  .7834  .7586  .2077  .237 Uiso calc PR  .45 A 2 H
loop_
_atom_site_aniso_label
_atom_site_aniso_U_11
_atom_site_aniso_U_22
_atom_site_aniso_U_33
_atom_site_aniso_U_12
_atom_site_aniso_U_13
_atom_site_aniso_U_23
  N1  .0440(9)  .0658(11)  .0518(10)  .0002(8)  .0135(7)  -.0015(8)
  C2  .0473(11)  .0584(12)  .0580(12)  -.0022(9)  .0100(9)  .0005(9)
  C3  .0444(11)  .0628(12)  .0628(12)  .0005(9)  .0143(9)  .0060(10)
  O4  .0555(10)  .166(2)  .0865(13)  .0164(11)  .0340(9)  .0159(13)
  C4  .0513(12)  .0811(16)  .0682(14)  .0077(10)  .0233(10)  .0058(11)
  C5  .0563(12)  .0884(16)  .0548(12)  .0081(11)  .0190(10)  -.0010(11)
  C6  .0480(11)  .0597(12)  .0542(11)  -.0023(8)  .0136(8)  .0029(9)
  C7  .0489(11)  .0563(11)  .0580(12)  .0013(9)  .0130(9)  -.0031(9)
  C8  .0554(13)  .0803(16)  .0724(14)  -.0084(11)  .0141(11)  .0037(12)
  C9  .0530(13)  .0913(19)  .102(2)  -.0125(13)  .0134(13)  -.0056(16)
  C10  .0571(14)  .0824(18)  .097(2)  .0028(12)  -.0094(13)  -.0090(15)
  C11  .0822(18)  .093(2)  .0725(16)  .0014(15)  -.0063(13)  .0071(14)
  C12  .0629(14)  .0831(16)  .0662(14)  -.0061(12)  .0058(11)  .0089(12)
  C13  .0523(11)  .0704(14)  .0549(12)  .0072(10)  .0089(9)  -.0029(10)
  C14  .0745(16)  .100(2)  .0703(16)  .0022(14)  .0024(12)  -.0185(14)
  C15  .107(2)  .144(3)  .0644(18)  .020(2)  .0005(16)  -.0282(19)
  C16  .122(3)  .168(4)  .0509(16)  .049(3)  .0182(17)  .005(2)
  C17  .106(2)  .128(3)  .0745(19)  .014(2)  .0326(17)  .0280(19)
  C18  .0809(16)  .0873(18)  .0622(14)  -.0003(14)  .0179(12)  .0067(12)
  O31  .0558(10)  .0805(13)  .1287(17)  -.0132(9)  .0096(10)  .0093(11)
  C31  .0496(12)  .0720(15)  .0805(16)  -.0031(11)  .0126(11)  .0102(12)
  O32  .0609(11)  .0856(14)  .145(2)  .0002(9)  -.0239(11)  .0235(12)
  C32  .082(4)  .119(5)  .096(5)  .002(4)  -.028(4)  .010(4)
  C33  .054(4)  .326(17)  .360(18)  .010(6)  -.010(6)  -.234(15)
  C32'  .061(4)  .106(6)  .112(7)  .016(4)  -.004(4)  .009(5)
  C33'  .101(7)  .239(14)  .114(7)  -.045(8)  -.036(6)  .049(8)
loop_
_geom_bond_atom_site_label_1
_geom_bond_atom_site_label_2
_geom_bond_site_symmetry_2
_geom_bond_distance
_geom_bond_publ_flag
  N1 C6 . 1.457(3) ?
  N1 C2 . 1.458(3) ?
  N1 H1 .  .91(2) ?
  C2 C13 . 1.506(3) ?
  C2 C3 . 1.547(3) ?
  C2 H2 .  .98 ?
  C3 C31 . 1.505(3) ?
  C3 C4 . 1.514(3) ?
  C3 H3 .  .98 ?
  O4 C4 . 1.209(3) ?
  C4 C5 . 1.485(3) ?
  C5 C6 . 1.530(3) ?
  C5 H5A .  .97 ?
  C5 H5B .  .97 ?
  C6 C7 . 1.512(3) ?
  C6 H6 .  .98 ?
  C7 C12 . 1.378(3) ?
  C7 C8 . 1.383(3) ?
  C8 C9 . 1.383(4) ?
  C8 H8 .  .93 ?
  C9 C10 . 1.360(4) ?
  C9 H9 .  .93 ?
  C10 C11 . 1.370(4) ?
  C10 H10 .  .93 ?
  C11 C12 . 1.374(3) ?
  C11 H11 .  .93 ?
  C12 H12 .  .93 ?
  C13 C18 . 1.374(4) ?
  C13 C14 . 1.381(3) ?
  C14 C15 . 1.366(4) ?
  C14 H14 .  .93 ?
  C15 C16 . 1.355(6) ?
  C15 H15 .  .93 ?
  C16 C17 . 1.370(6) ?
  C16 H16 .  .93 ?
  C17 C18 . 1.395(4) ?
  C17 H17 .  .93 ?
  C18 H18 .  .93 ?
  O31 C31 . 1.194(3) ?
  C31 O32 . 1.331(3) ?
  O32 C32' . 1.482(5) ?
  O32 C32 . 1.485(4) ?
  C32 C33 . 1.500(5) ?
  C32 H32A .  .97 ?
  C32 H32B .  .97 ?
  C33 H33A .  .96 ?
  C33 H33B .  .96 ?
  C33 H33C .  .96 ?
  C32' C33' . 1.512(5) ?
  C32' H32C .  .97 ?
  C32' H32D .  .97 ?
  C33' H33D .  .96 ?
  C33' H33E .  .96 ?
  C33' H33F .  .96 ?