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The title compound, C5H12NO2+·C6H2N3O7·C5H11NO2, crystallizes in the monoclinic system with one valinium cation, one valine mol­ecule and one picrate anion in the asymmetric unit. In the crystal structure, the valinium cation is linked to the picrate anion via O—H...O hydrogen bonds.

Supporting information

cif

Crystallographic Information File (CIF) https://doi.org/10.1107/S1600536804021877/fl6114sup1.cif
Contains datablocks global, I

hkl

Structure factor file (CIF format) https://doi.org/10.1107/S1600536804021877/fl6114Isup2.hkl
Contains datablock I

CCDC reference: 252981

Key indicators

  • Single-crystal X-ray study
  • T = 293 K
  • R factor = 0.058
  • wR factor = 0.181
  • Data-to-parameter ratio = 12.4

checkCIF/PLATON results

No syntax errors found



Alert level B PLAT027_ALERT_3_B _diffrn_reflns_theta_full (too) Low ............ 24.98 Deg. PLAT414_ALERT_2_B Short Intra D-H..H-X H1A .. H5F .. 1.86 Ang. PLAT432_ALERT_2_B Short Inter X...Y Contact O13 .. C1 .. 2.90 Ang.
Alert level C DIFMX01_ALERT_2_C The maximum difference density is > 0.1*ZMAX*0.75 _refine_diff_density_max given = 0.648 Test value = 0.600 DIFMX02_ALERT_1_C The minimum difference density is > 0.1*ZMAX*0.75 The relevant atom site should be identified. PLAT042_ALERT_1_C Calc. and Rep. MoietyFormula Strings Differ .... ? PLAT097_ALERT_2_C Maximum (Positive) Residual Density ............ 0.65 e/A   3 PLAT125_ALERT_4_C No _symmetry_space_group_name_Hall Given ....... ? PLAT223_ALERT_4_C Large Solvent/Anion H Ueq(max)/Ueq(min) ... 3.12 Ratio PLAT242_ALERT_2_C Check Low U(eq) as Compared to Neighbors for N12 PLAT340_ALERT_3_C Low Bond Precision on C-C bonds (x 1000) Ang ... 6 PLAT432_ALERT_2_C Short Inter X...Y Contact O13 .. C2 .. 2.93 Ang. PLAT432_ALERT_2_C Short Inter X...Y Contact O13 .. C1' .. 2.96 Ang. PLAT720_ALERT_4_C Number of Unusual/Non-Standard Label(s) ........ 17
0 ALERT level A = In general: serious problem 3 ALERT level B = Potentially serious problem 11 ALERT level C = Check and explain 0 ALERT level G = General alerts; check 2 ALERT type 1 CIF construction/syntax error, inconsistent or missing data 7 ALERT type 2 Indicator that the structure model may be wrong or deficient 2 ALERT type 3 Indicator that the structure quality may be low 3 ALERT type 4 Improvement, methodology, query or suggestion

Computing details top

Data collection: CAD-4 EXPRESS (Enraf–Nonius, 1994); cell refinement: CAD-4 EXPRESS; data reduction: XCAD4 (Harms & Wocadlo, 1995); program(s) used to solve structure: SHELXS97 (Sheldrick, 1990); program(s) used to refine structure: SHELXL97 (Sheldrick, 1997); molecular graphics: PLATON (Spek, 1999); software used to prepare material for publication: SHELXL97.

'DL-valine DL-valinium picrate ' top
Crystal data top
C5H12NO2+·C6H2N3O7·C5H11NO2F(000) = 976
Mr = 463.41Dx = 1.491 Mg m3
Dm = 1.489 Mg m3
Dm measured by Flotation technique using mixture of carbon tetracholride and xylene
Monoclinic, P21/nMo Kα radiation, λ = 0.71073 Å
a = 5.3822 (4) ÅCell parameters from 25 reflections
b = 23.221 (2) Åθ = 9.8–14.1°
c = 16.579 (2) ŵ = 0.13 mm1
β = 94.695 (7)°T = 293 K
V = 2065.0 (3) Å3Block, yellow
Z = 40.3 × 0.2 × 0.15 mm
Data collection top
MACH3 Nonius sealed tube
diffractometer
2219 reflections with I > 2σ(I)
Radiation source: fine-focus sealed tubeRint = 0.030
Graphite monochromatorθmax = 25.0°, θmin = 2.1°
ω–2θ scansh = 06
Absorption correction: psi scan
(North et al., 1968)
k = 127
Tmin = 0.970, Tmax = 0.981l = 1919
4297 measured reflections3 standard reflections every 60 min
3642 independent reflections intensity decay: none
Refinement top
Refinement on F2Primary atom site location: structure-invariant direct methods
Least-squares matrix: fullSecondary atom site location: difference Fourier map
R[F2 > 2σ(F2)] = 0.058Hydrogen site location: inferred from neighbouring sites
wR(F2) = 0.181H atoms treated by a mixture of independent and constrained refinement
S = 1.03 w = 1/[σ2(Fo2) + (0.0782P)2 + 2.0601P]
where P = (Fo2 + 2Fc2)/3
3642 reflections(Δ/σ)max < 0.001
293 parametersΔρmax = 0.65 e Å3
0 restraintsΔρmin = 0.34 e Å3
Special details top

Geometry. All e.s.d.'s (except the e.s.d. in the dihedral angle between two l.s. planes) are estimated using the full covariance matrix. The cell e.s.d.'s are taken into account individually in the estimation of e.s.d.'s in distances, angles and torsion angles; correlations between e.s.d.'s in cell parameters are only used when they are defined by crystal symmetry. An approximate (isotropic) treatment of cell e.s.d.'s is used for estimating e.s.d.'s involving l.s. planes.

Refinement. Refinement of F2 against ALL reflections. The weighted R-factor wR and goodness of fit S are based on F2, conventional R-factors R are based on F, with F set to zero for negative F2. The threshold expression of F2 > σ(F2) is used only for calculating R-factors(gt) etc. and is not relevant to the choice of reflections for refinement. R-factors based on F2 are statistically about twice as large as those based on F, and R- factors based on ALL data will be even larger.

Fractional atomic coordinates and isotropic or equivalent isotropic displacement parameters (Å2) top
xyzUiso*/UeqOcc. (<1)
O1A0.8489 (5)0.94681 (12)0.92220 (15)0.0402 (7)
O1B0.5010 (4)0.90248 (12)0.87728 (16)0.0403 (7)
C10.7240 (6)0.91537 (15)0.8728 (2)0.0284 (8)
C20.8573 (6)0.89051 (15)0.8027 (2)0.0291 (8)
H20.73520.88580.75600.035*
N11.0493 (6)0.93352 (14)0.78120 (19)0.0379 (8)
H1A1.12930.92010.74020.057*
H1B1.15770.93940.82390.057*
H1C0.97460.96660.76680.057*
C30.9840 (7)0.83231 (16)0.8209 (2)0.0360 (9)
H31.10690.83750.86730.043*
C40.7984 (9)0.78699 (19)0.8434 (3)0.0605 (13)
H4A0.71380.80030.88870.091*0.50
H4B0.88510.75180.85760.091*0.50
H4C0.67900.78020.79810.091*0.50
H4D0.80480.75460.80760.091*0.50
H4E0.63350.80300.83870.091*0.50
H4F0.83960.77460.89810.091*0.50
C51.1216 (8)0.8119 (2)0.7496 (3)0.0521 (11)
H5A1.26560.83570.74480.078*0.50
H5B1.01300.81450.70090.078*0.50
H5C1.17300.77260.75820.078*0.50
H5D1.03550.77960.72440.078*0.50
H5E1.28800.80070.76840.078*0.50
H5F1.12810.84260.71100.078*0.50
O1A'0.7186 (5)0.95903 (13)0.10851 (17)0.0493 (8)
O1B'0.6262 (5)0.89988 (13)0.20810 (17)0.0469 (8)
H1'0.763 (10)0.913 (2)0.227 (3)0.070*
C1'0.5811 (7)0.92669 (16)0.1389 (2)0.0330 (9)
C2'0.3226 (6)0.91095 (16)0.1001 (2)0.0332 (8)
H2'0.19930.92420.13630.040*
N1'0.2827 (5)0.94380 (14)0.02351 (17)0.0349 (7)
H1A'0.13250.93570.00030.052*
H1B'0.39880.93410.00930.052*
H1C'0.29270.98130.03410.052*
C3'0.2794 (9)0.84625 (19)0.0850 (3)0.0545 (12)
H3'0.13580.84390.04480.065*
C4'0.4902 (12)0.8173 (2)0.0464 (3)0.0812 (18)
H4A'0.52290.83750.00210.122*0.50
H4B'0.44520.77820.03330.122*0.50
H4C'0.63700.81770.08350.122*0.50
H4D'0.54720.78480.07860.122*0.50
H4E'0.62480.84410.04310.122*0.50
H4F'0.43300.80460.00700.122*0.50
C5'0.2011 (12)0.8161 (3)0.1580 (4)0.0835 (18)
H5A'0.06800.83720.17960.125*0.50
H5B'0.34000.81380.19810.125*0.50
H5C'0.14490.77800.14350.125*0.50
H5D'0.30060.78220.16790.125*0.50
H5E'0.02860.80550.14940.125*0.50
H5F'0.22370.84130.20400.125*0.50
C110.5836 (7)0.04758 (16)0.6224 (2)0.0331 (8)
N110.4938 (6)0.00098 (14)0.66911 (19)0.0398 (8)
O120.3206 (6)0.02879 (14)0.63823 (18)0.0581 (8)
O130.5832 (6)0.00796 (13)0.73837 (17)0.0546 (8)
C120.8106 (7)0.07873 (16)0.6496 (2)0.0343 (9)
O110.9528 (5)0.06328 (12)0.71012 (16)0.0479 (7)
C130.8561 (7)0.12585 (17)0.5970 (2)0.0384 (9)
N121.0650 (7)0.16568 (15)0.6155 (3)0.0505 (9)
O141.1427 (6)0.19394 (16)0.5611 (2)0.0742 (10)
O151.1428 (9)0.17084 (17)0.6854 (3)0.1037 (17)
C140.7164 (7)0.13858 (18)0.5265 (2)0.0400 (10)
H140.75990.16920.49430.048*
C150.5094 (7)0.10511 (18)0.5039 (2)0.0375 (9)
N130.3614 (7)0.11846 (17)0.4293 (2)0.0487 (9)
O160.1805 (6)0.08680 (15)0.40975 (18)0.0603 (9)
O170.4229 (7)0.15872 (16)0.38899 (19)0.0707 (10)
C160.4430 (7)0.06018 (17)0.5515 (2)0.0366 (9)
H160.30270.03820.53590.044*
Atomic displacement parameters (Å2) top
U11U22U33U12U13U23
O1A0.0315 (14)0.0493 (16)0.0378 (15)0.0017 (12)0.0079 (12)0.0118 (13)
O1B0.0191 (13)0.0581 (18)0.0440 (15)0.0066 (12)0.0054 (11)0.0015 (13)
C10.0243 (18)0.0314 (19)0.0284 (18)0.0007 (15)0.0049 (15)0.0058 (15)
C20.0192 (16)0.039 (2)0.0279 (18)0.0041 (15)0.0023 (14)0.0020 (16)
N10.0280 (16)0.048 (2)0.0383 (18)0.0027 (14)0.0060 (13)0.0056 (15)
C30.0263 (18)0.041 (2)0.040 (2)0.0004 (17)0.0024 (16)0.0009 (18)
C40.054 (3)0.045 (3)0.084 (4)0.004 (2)0.017 (3)0.004 (2)
C50.040 (2)0.057 (3)0.059 (3)0.013 (2)0.006 (2)0.008 (2)
O1A'0.0303 (14)0.068 (2)0.0478 (17)0.0141 (14)0.0067 (13)0.0129 (15)
O1B'0.0362 (16)0.0612 (19)0.0411 (16)0.0003 (14)0.0102 (13)0.0122 (14)
C1'0.0275 (19)0.037 (2)0.033 (2)0.0028 (17)0.0033 (16)0.0001 (17)
C2'0.0252 (18)0.042 (2)0.0322 (19)0.0011 (16)0.0020 (15)0.0015 (17)
N1'0.0268 (15)0.0411 (18)0.0352 (17)0.0001 (14)0.0074 (13)0.0017 (14)
C3'0.059 (3)0.045 (3)0.058 (3)0.008 (2)0.003 (2)0.001 (2)
C4'0.125 (5)0.050 (3)0.072 (4)0.010 (3)0.029 (4)0.011 (3)
C5'0.082 (4)0.072 (4)0.097 (4)0.004 (3)0.006 (3)0.024 (3)
C110.0326 (19)0.037 (2)0.0292 (19)0.0068 (17)0.0003 (16)0.0013 (16)
N110.0393 (19)0.0431 (19)0.0373 (19)0.0073 (16)0.0050 (15)0.0016 (16)
O120.0572 (19)0.067 (2)0.0504 (18)0.0209 (17)0.0080 (15)0.0036 (16)
O130.0629 (19)0.0580 (19)0.0415 (17)0.0083 (16)0.0039 (15)0.0182 (15)
C120.0310 (19)0.039 (2)0.0323 (19)0.0113 (17)0.0044 (16)0.0002 (17)
O110.0437 (16)0.0541 (18)0.0422 (16)0.0025 (14)0.0190 (13)0.0077 (13)
C130.0297 (19)0.043 (2)0.041 (2)0.0050 (18)0.0042 (17)0.0019 (18)
N120.042 (2)0.041 (2)0.065 (3)0.0047 (17)0.0169 (19)0.0060 (19)
O140.060 (2)0.073 (2)0.090 (3)0.0223 (19)0.0076 (19)0.014 (2)
O150.128 (4)0.080 (3)0.090 (3)0.047 (3)0.067 (3)0.028 (2)
C140.039 (2)0.047 (2)0.033 (2)0.0031 (19)0.0012 (18)0.0037 (18)
C150.036 (2)0.051 (2)0.0247 (18)0.0089 (19)0.0053 (15)0.0014 (18)
N130.048 (2)0.066 (3)0.0305 (18)0.007 (2)0.0082 (16)0.0057 (18)
O160.0472 (18)0.084 (2)0.0466 (17)0.0053 (17)0.0176 (15)0.0033 (17)
O170.077 (2)0.086 (3)0.0456 (19)0.004 (2)0.0169 (17)0.0303 (19)
C160.032 (2)0.048 (2)0.0289 (19)0.0028 (18)0.0026 (16)0.0046 (17)
Geometric parameters (Å, º) top
O1A—C11.251 (4)C3'—C5'1.489 (7)
O1B—C11.245 (4)C3'—C4'1.505 (7)
C1—C21.528 (5)C3'—H3'0.9800
C2—N11.501 (4)C4'—H4A'0.9600
C2—C31.533 (5)C4'—H4B'0.9600
C2—H20.9800C4'—H4C'0.9600
N1—H1A0.8900C4'—H4D'0.9600
N1—H1B0.8900C4'—H4E'0.9600
N1—H1C0.8900C4'—H4F'0.9600
C3—C41.518 (6)C5'—H5A'0.9600
C3—C51.521 (6)C5'—H5B'0.9600
C3—H30.9800C5'—H5C'0.9600
C4—H4A0.9600C5'—H5D'0.9600
C4—H4B0.9600C5'—H5E'0.9600
C4—H4C0.9600C5'—H5F'0.9600
C4—H4D0.9600C11—C161.375 (5)
C4—H4E0.9600C11—N111.438 (5)
C4—H4F0.9600C11—C121.460 (5)
C5—H5A0.9600N11—O131.226 (4)
C5—H5B0.9600N11—O121.237 (4)
C5—H5C0.9600C12—O111.263 (4)
C5—H5D0.9600C12—C131.433 (5)
C5—H5E0.9600C13—C141.370 (5)
C5—H5F0.9600C13—N121.468 (5)
O1A'—C1'1.194 (5)N12—O151.205 (5)
O1B'—C1'1.311 (4)N12—O141.217 (5)
O1B'—H1'0.83 (5)C14—C151.385 (6)
C1'—C2'1.528 (5)C14—H140.9300
C2'—N1'1.482 (4)C15—C161.373 (6)
C2'—C3'1.538 (6)C15—N131.449 (5)
C2'—H2'0.9800N13—O171.211 (5)
N1'—H1A'0.8900N13—O161.242 (5)
N1'—H1B'0.8900C16—H160.9300
N1'—H1C'0.8900
O1B—C1—O1A124.7 (3)H1A'—N1'—H1C'109.5
O1B—C1—C2118.0 (3)H1B'—N1'—H1C'109.5
O1A—C1—C2117.2 (3)C5'—C3'—C4'114.1 (4)
N1—C2—C1107.7 (3)C5'—C3'—C2'112.1 (4)
N1—C2—C3109.3 (3)C4'—C3'—C2'113.4 (4)
C1—C2—C3114.3 (3)C5'—C3'—H3'105.4
N1—C2—H2108.5C4'—C3'—H3'105.4
C1—C2—H2108.5C2'—C3'—H3'105.4
C3—C2—H2108.5C3'—C4'—H4A'109.5
C2—N1—H1A109.5C3'—C4'—H4B'109.5
C2—N1—H1B109.5H4A'—C4'—H4B'109.5
H1A—N1—H1B109.5C3'—C4'—H4C'109.5
C2—N1—H1C109.5H4A'—C4'—H4C'109.5
H1A—N1—H1C109.5H4B'—C4'—H4C'109.5
H1B—N1—H1C109.5C3'—C4'—H4D'109.5
C4—C3—C5110.3 (4)H4A'—C4'—H4D'141.1
C4—C3—C2111.6 (3)H4B'—C4'—H4D'56.3
C5—C3—C2111.0 (3)H4C'—C4'—H4D'56.3
C4—C3—H3107.9C3'—C4'—H4E'109.5
C5—C3—H3107.9H4A'—C4'—H4E'56.3
C2—C3—H3107.9H4B'—C4'—H4E'141.1
C3—C4—H4A109.5H4C'—C4'—H4E'56.3
C3—C4—H4B109.5H4D'—C4'—H4E'109.5
H4A—C4—H4B109.5C3'—C4'—H4F'109.5
C3—C4—H4C109.5H4A'—C4'—H4F'56.3
H4A—C4—H4C109.5H4B'—C4'—H4F'56.3
H4B—C4—H4C109.5H4C'—C4'—H4F'141.1
C3—C4—H4D109.5H4D'—C4'—H4F'109.5
H4A—C4—H4D141.1H4E'—C4'—H4F'109.5
H4B—C4—H4D56.3C3'—C5'—H5A'109.5
H4C—C4—H4D56.3C3'—C5'—H5B'109.5
C3—C4—H4E109.5H5A'—C5'—H5B'109.5
H4A—C4—H4E56.3C3'—C5'—H5C'109.5
H4B—C4—H4E141.1H5A'—C5'—H5C'109.5
H4C—C4—H4E56.3H5B'—C5'—H5C'109.5
H4D—C4—H4E109.5C3'—C5'—H5D'109.5
C3—C4—H4F109.5H5A'—C5'—H5D'141.1
H4A—C4—H4F56.3H5B'—C5'—H5D'56.3
H4B—C4—H4F56.3H5C'—C5'—H5D'56.3
H4C—C4—H4F141.1C3'—C5'—H5E'109.5
H4D—C4—H4F109.5H5A'—C5'—H5E'56.3
H4E—C4—H4F109.5H5B'—C5'—H5E'141.1
C3—C5—H5A109.5H5C'—C5'—H5E'56.3
C3—C5—H5B109.5H5D'—C5'—H5E'109.5
H5A—C5—H5B109.5C3'—C5'—H5F'109.5
C3—C5—H5C109.5H5A'—C5'—H5F'56.3
H5A—C5—H5C109.5H5B'—C5'—H5F'56.3
H5B—C5—H5C109.5H5C'—C5'—H5F'141.1
C3—C5—H5D109.5H5D'—C5'—H5F'109.5
H5A—C5—H5D141.1H5E'—C5'—H5F'109.5
H5B—C5—H5D56.3C16—C11—N11115.8 (3)
H5C—C5—H5D56.3C16—C11—C12123.2 (3)
C3—C5—H5E109.5N11—C11—C12121.1 (3)
H5A—C5—H5E56.3O13—N11—O12121.2 (3)
H5B—C5—H5E141.1O13—N11—C11120.6 (3)
H5C—C5—H5E56.3O12—N11—C11118.2 (3)
H5D—C5—H5E109.5O11—C12—C13125.3 (4)
C3—C5—H5F109.5O11—C12—C11122.9 (3)
H5A—C5—H5F56.3C13—C12—C11111.7 (3)
H5B—C5—H5F56.3C14—C13—C12125.1 (4)
H5C—C5—H5F141.1C14—C13—N12113.6 (4)
H5D—C5—H5F109.5C12—C13—N12121.3 (3)
H5E—C5—H5F109.5O15—N12—O14123.0 (4)
C1'—O1B'—H1'105 (4)O15—N12—C13117.6 (4)
O1A'—C1'—O1B'126.2 (3)O14—N12—C13119.2 (4)
O1A'—C1'—C2'123.2 (3)C13—C14—C15118.9 (4)
O1B'—C1'—C2'110.6 (3)C13—C14—H14120.6
N1'—C2'—C1'107.5 (3)C15—C14—H14120.6
N1'—C2'—C3'110.7 (3)C16—C15—C14120.9 (3)
C1'—C2'—C3'115.0 (3)C16—C15—N13120.2 (4)
N1'—C2'—H2'107.8C14—C15—N13119.0 (4)
C1'—C2'—H2'107.8O17—N13—O16123.9 (3)
C3'—C2'—H2'107.8O17—N13—C15118.7 (4)
C2'—N1'—H1A'109.5O16—N13—C15117.4 (4)
C2'—N1'—H1B'109.5C15—C16—C11120.1 (4)
H1A'—N1'—H1B'109.5C15—C16—H16119.9
C2'—N1'—H1C'109.5C11—C16—H16119.9
O1A—C1—C2—N132.3 (4)C16—C11—C12—C134.2 (5)
O1B—C1—C2—N1148.5 (3)N11—C11—C12—C13176.0 (3)
O1A—C1—C2—C389.3 (4)O11—C12—C13—C14172.3 (4)
O1B—C1—C2—C389.9 (4)C11—C12—C13—C144.2 (5)
N1—C2—C3—C4179.8 (3)O11—C12—C13—N127.7 (6)
C1—C2—C3—C459.0 (4)C11—C12—C13—N12175.8 (3)
N1—C2—C3—C556.7 (4)C14—C13—N12—O15155.2 (4)
C1—C2—C3—C5177.5 (3)C12—C13—N12—O1524.9 (6)
O1A'—C1'—C2'—N1'1.5 (5)C14—C13—N12—O1421.1 (5)
O1B'—C1'—C2'—N1'178.6 (3)C12—C13—N12—O14158.9 (4)
O1A'—C1'—C2'—C3'122.3 (4)C12—C13—C14—C152.1 (6)
O1B'—C1'—C2'—C3'57.6 (4)N12—C13—C14—C15178.0 (3)
N1'—C2'—C3'—C5'153.4 (4)C13—C14—C15—C160.6 (6)
C1'—C2'—C3'—C5'84.6 (5)C13—C14—C15—N13180.0 (4)
N1'—C2'—C3'—C4'75.6 (5)C16—C15—N13—O17179.2 (4)
C1'—C2'—C3'—C4'46.4 (5)C14—C15—N13—O170.3 (6)
C16—C11—N11—O13169.0 (3)C16—C15—N13—O162.2 (6)
C12—C11—N11—O1311.2 (5)C14—C15—N13—O16178.3 (4)
C16—C11—N11—O129.3 (5)C14—C15—C16—C110.5 (6)
C12—C11—N11—O12170.5 (3)N13—C15—C16—C11180.0 (4)
C16—C11—C12—O11172.4 (4)N11—C11—C16—C15178.0 (3)
N11—C11—C12—O117.4 (6)C12—C11—C16—C152.1 (6)
Hydrogen-bond geometry (Å, º) top
D—H···AD—HH···AD···AD—H···A
N1—H1A···O12i0.892.373.014 (4)129
N1—H1B···O1Bii0.892.162.887 (4)138
N1—H1C···O13iii0.892.202.890 (4)134
N1—H1C···O11iii0.892.433.261 (4)155
O1B—H1···O11iv0.83 (5)1.86 (5)2.684 (4)168 (5)
N1—H1C···O1Av0.892.002.805 (4)151
N1—H1B···O1Bvi0.892.132.940 (4)150
N1—H1A···O1Avii0.891.932.763 (4)155
Symmetry codes: (i) x+1, y+1, z; (ii) x+1, y, z; (iii) x, y+1, z; (iv) x+2, y+1, z+1; (v) x+1, y+2, z+1; (vi) x, y, z1; (vii) x1, y, z1.
 

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