organic compounds
5-Acetyl-4-(3-hydroxyphenyl)-6-methyl-1,2,3,4-tetrahydropyrimidin-2-one–tris(hydroxymethyl)ammonium chloride (2/1)
aPG & Research Department of Chemistry, The New College (Autonomous), Chennai 600 014, Tamilnadu, India, and bDepartment of Physics, The New College (Autonomous), Chennai 600 014, Tamilnadu, India
*Correspondence e-mail: mnizam_new@yahoo.in
The 13H14N2O3·C3H10NO3+·Cl−, contains two independent molecules (A and B) of the title pyrimidine derivative and one ion-pair of tris(hydroxymethyl)ammonium chloride. The pyrimidine ring in each pyrimidine derivative has a half-chair conformation. Its mean plane is inclined to the benzene ring by 87.2 (3)° in molecule A and 85.7 (2)° in molecule B. In the crystal, the pyrimidine derivatives are connected to each other by N—H⋯O hydrogen bonds, forming chains propagating along the b-axis direction. The chains are linked via O—H—Cl hydrogen bonds, forming corrugated sheets lying parallel to the bc plane. The sheets are linked via C—H⋯O hydrogen bonds, forming a three-dimensional framework. The tris(hydroxymethyl)ammonium chloride molecules are located in the cages of the framework. There are also further C—H⋯O hydrogen bonds and C—H⋯π interactions present in the three-dimensional framework structure. Both the cation and chloride anion of the tris(hydroxymethyl)ammonium chloride are disordered over two positions, with a refined occupancy ratio of 0.418 (8):0.582 (8) for the cation and 0.71 (4):0.29 (4) for the anion.
of the title compound, 2CCCDC reference: 970695
Related literature
For the crystal structures of related pyrimidine derivatives, see: NizamMohideen et al. (2008a,b). For standard bond lengths, see: Allen et al. (1987). For puckering parameters, see: Cremer & Pople (1975). For asymmetry parameters, see: Nardelli (1983). For graph-set analysis, see: Bernstein et al. (1995).
Experimental
Crystal data
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Data collection: APEX2 (Bruker, 2004); cell APEX2 and SAINT (Bruker, 2004); data reduction: SAINT and XPREP (Bruker, 2004); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: ORTEP-3 for Windows (Farrugia, 2012) and Mercury (Macrae et al., 2008); software used to prepare material for publication: WinGX (Farrugia, 2012) and PLATON (Spek, 2009).
Supporting information
CCDC reference: 970695
10.1107/S1600536813030559/su2662sup1.cif
contains datablocks global, I. DOI:Structure factors: contains datablock I. DOI: 10.1107/S1600536813030559/su2662Isup2.hkl
Supporting information file. DOI: 10.1107/S1600536813030559/su2662Isup3.cml
A mixture of urea, 3-hydroxybenzaldehyde and acetyl acetone in the molar ratio 1.5:1:1 was ground in a mortar and pestle, in the presence of a catalytic amount of phosphoric acid, for 30 minutes, and then poured into a beaker containing ice cold water. The product obtained, 6-methyl-5-acetyl-3,4-dihydro-4-(3-hydroxyphenyl)-2(1H)-pyrimidinone [I], was filtered, washed with water and dried in air. Under ice cold conditions a few drops of triethylamine (0.01 mole) were added to chloroacetyl chloride (0.01 mole). 0.01 mol of [I] was added and then the mixture was stirred well for 10 min. Ethanol (20 ml) was then added and the mixture irradiated with microwave irradiation for 30 s. On evaporation of the solvent, the title solid product was obtained. It was recrystallized from ethanol giving brown block-like crystals suitable for X-Ray diffraction analysis.
The tris(hydroxymethyl)ammonium chloride molecule is disordered both thermally and positionally; over two positions with refined occupancy ratios of 0.418 (8):0.528 (8) for the cation and 0.71 (4):0.29 (4) for the Cl- anion. The corresponding bond distances involving the disordered atoms were restrained to be equal. The NH H atoms of the pyrimidine derivatives were located in difference Fourier maps and refined with Uiso(H) = 1.2Ueq(N). The OH, NH(cation) and C-bound H-atoms were placed in calculated positions and treated as riding atoms: O—H = 0.82 Å, N—H = 0.91 Å, C—H = 0.93–0.98 Å with Uiso(H) = 1.5Ueq(C-methyl and O) and = 1.2Ueq(N,C) for other H atoms.
Data collection: APEX2 (Bruker, 2004); cell
APEX2 and SAINT (Bruker, 2004); data reduction: SAINT and XPREP (Bruker, 2004); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: ORTEP-3 for Windows (Farrugia, 2012) and Mercury (Macrae et al., 2008); software used to prepare material for publication: WinGX (Farrugia, 2012) and PLATON (Spek, 2009).Fig. 1. View of the molecular structure of the title compound, with atom labelling. Displacement ellipsoids are drawn at the 40% probability level. Only the major component of the tris(hydroxymethyl)ammonium chloride molecule is shown. | |
Fig. 2. A view along the a axis of the crystal packing of the title compound. The hydrogen bonds are shown as dashed lines (see Table 1 for details; H atoms not involved in hydrogen bonding have been omitted for clarity). |
2C13H14N2O3·C3H10NO3+·Cl− | F(000) = 1344 |
Mr = 636.09 | Dx = 1.283 Mg m−3 |
Orthorhombic, Pna21 | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: P 2c -2n | Cell parameters from 5539 reflections |
a = 15.7317 (7) Å | θ = 2.3–22.5° |
b = 7.2634 (12) Å | µ = 0.17 mm−1 |
c = 28.8121 (3) Å | T = 293 K |
V = 3292.2 (6) Å3 | Block, brown |
Z = 4 | 0.30 × 0.20 × 0.20 mm |
Bruker Kappa APEXII CCD diffractometer | 5759 independent reflections |
Radiation source: fine-focus sealed tube | 4284 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.038 |
ω and ϕ scans | θmax = 25.0°, θmin = 2.6° |
Absorption correction: multi-scan (SADABS; Bruker, 2004) | h = −18→18 |
Tmin = 0.950, Tmax = 0.966 | k = −8→8 |
27037 measured reflections | l = −34→33 |
Refinement on F2 | Primary atom site location: structure-invariant direct methods |
Least-squares matrix: full | Secondary atom site location: difference Fourier map |
R[F2 > 2σ(F2)] = 0.047 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.157 | H atoms treated by a mixture of independent and constrained refinement |
S = 0.88 | w = 1/[σ2(Fo2) + (0.1275P)2] where P = (Fo2 + 2Fc2)/3 |
5759 reflections | (Δ/σ)max = 0.001 |
489 parameters | Δρmax = 0.21 e Å−3 |
270 restraints | Δρmin = −0.23 e Å−3 |
2C13H14N2O3·C3H10NO3+·Cl− | V = 3292.2 (6) Å3 |
Mr = 636.09 | Z = 4 |
Orthorhombic, Pna21 | Mo Kα radiation |
a = 15.7317 (7) Å | µ = 0.17 mm−1 |
b = 7.2634 (12) Å | T = 293 K |
c = 28.8121 (3) Å | 0.30 × 0.20 × 0.20 mm |
Bruker Kappa APEXII CCD diffractometer | 5759 independent reflections |
Absorption correction: multi-scan (SADABS; Bruker, 2004) | 4284 reflections with I > 2σ(I) |
Tmin = 0.950, Tmax = 0.966 | Rint = 0.038 |
27037 measured reflections |
R[F2 > 2σ(F2)] = 0.047 | 270 restraints |
wR(F2) = 0.157 | H atoms treated by a mixture of independent and constrained refinement |
S = 0.88 | Δρmax = 0.21 e Å−3 |
5759 reflections | Δρmin = −0.23 e Å−3 |
489 parameters |
Geometry. Bond distances, angles etc. have been calculated using the rounded fractional coordinates. All su's are estimated from the variances of the (full) variance-covariance matrix. The cell e.s.d.'s are taken into account in the estimation of distances, angles and torsion angles |
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. |
x | y | z | Uiso*/Ueq | Occ. (<1) | |
O1 | 1.1898 (3) | −0.1336 (5) | 0.76654 (15) | 0.0627 (17) | |
O2 | 1.0190 (3) | 0.5947 (4) | 0.81444 (19) | 0.0739 (16) | |
O3 | 1.2755 (3) | 0.7663 (6) | 0.90241 (17) | 0.0800 (19) | |
N1 | 1.1703 (3) | 0.1712 (6) | 0.77776 (16) | 0.0427 (14) | |
N2 | 1.0738 (3) | −0.0308 (5) | 0.80570 (14) | 0.0394 (14) | |
C1 | 1.1482 (3) | −0.0060 (5) | 0.78268 (17) | 0.0397 (16) | |
C2 | 1.0148 (3) | 0.1002 (5) | 0.81631 (16) | 0.0340 (16) | |
C3 | 1.0405 (3) | 0.2834 (6) | 0.81304 (18) | 0.0353 (16) | |
C4 | 1.1346 (3) | 0.3226 (6) | 0.80297 (15) | 0.0363 (14) | |
C5 | 0.9322 (4) | 0.0233 (7) | 0.8310 (2) | 0.0557 (19) | |
C6 | 0.9843 (3) | 0.4432 (6) | 0.8171 (2) | 0.0473 (18) | |
C7 | 0.8944 (4) | 0.4363 (7) | 0.8239 (3) | 0.080 (3) | |
C8 | 1.1811 (3) | 0.3670 (5) | 0.84776 (16) | 0.0330 (14) | |
C9 | 1.2002 (4) | 0.2298 (7) | 0.8808 (2) | 0.050 (2) | |
C10 | 1.2412 (5) | 0.2783 (10) | 0.9205 (2) | 0.067 (2) | |
C11 | 1.2679 (4) | 0.4511 (8) | 0.92887 (18) | 0.0463 (17) | |
C12 | 1.2508 (4) | 0.5852 (7) | 0.89731 (19) | 0.0483 (19) | |
C13 | 1.2081 (3) | 0.5437 (7) | 0.8560 (2) | 0.0410 (17) | |
O4 | 1.3085 (2) | −0.6328 (4) | 0.73448 (12) | 0.0469 (11) | |
O5 | 1.4787 (3) | 0.0947 (4) | 0.6874 (2) | 0.0797 (19) | |
O6 | 1.2233 (4) | 0.2696 (6) | 0.60050 (16) | 0.082 (2) | |
N3 | 1.4242 (3) | −0.5345 (5) | 0.69651 (15) | 0.0435 (14) | |
N4 | 1.3262 (2) | −0.3263 (6) | 0.72435 (15) | 0.0380 (14) | |
C14 | 1.3476 (3) | −0.4990 (6) | 0.71941 (16) | 0.0363 (16) | |
C15 | 1.3671 (3) | −0.1749 (5) | 0.69814 (15) | 0.0373 (16) | |
C16 | 1.4586 (3) | −0.2193 (5) | 0.68982 (18) | 0.0337 (16) | |
C17 | 1.4817 (3) | −0.3934 (6) | 0.68695 (18) | 0.0380 (16) | |
C18 | 1.5676 (3) | −0.4680 (6) | 0.67216 (19) | 0.0433 (16) | |
C19 | 1.5110 (3) | −0.0543 (6) | 0.6852 (2) | 0.0417 (14) | |
C20 | 1.6079 (3) | −0.0632 (7) | 0.6794 (3) | 0.063 (2) | |
C21 | 1.3158 (3) | −0.1330 (7) | 0.65405 (17) | 0.0410 (17) | |
C22 | 1.2883 (3) | 0.0439 (7) | 0.6458 (2) | 0.0437 (17) | |
C23 | 1.2456 (3) | 0.0907 (7) | 0.60659 (19) | 0.0500 (19) | |
C24 | 1.2280 (4) | −0.0445 (9) | 0.5741 (2) | 0.063 (2) | |
C25 | 1.2538 (4) | −0.2274 (7) | 0.5825 (2) | 0.0483 (19) | |
C26 | 1.2990 (4) | −0.2677 (8) | 0.6224 (2) | 0.0523 (19) | |
O7' | 1.0035 (13) | 0.728 (2) | 0.4720 (8) | 0.292 (8) | 0.582 (8) |
O8' | 0.9692 (11) | 0.201 (2) | 0.4311 (5) | 0.196 (6) | 0.582 (8) |
O9' | 0.9596 (13) | 0.263 (3) | 0.5715 (6) | 0.229 (7) | 0.582 (8) |
N5' | 0.9720 (5) | 0.4167 (11) | 0.4963 (4) | 0.089 (3) | 0.582 (8) |
C27' | 0.9651 (9) | 0.6189 (16) | 0.5113 (6) | 0.164 (5) | 0.582 (8) |
C28' | 0.9618 (11) | 0.407 (2) | 0.4438 (5) | 0.155 (6) | 0.582 (8) |
C29' | 0.9145 (11) | 0.306 (2) | 0.5242 (5) | 0.162 (6) | 0.582 (8) |
O7 | 1.0080 (11) | 0.673 (2) | 0.5558 (6) | 0.173 (6) | 0.418 (8) |
O8 | 0.9161 (16) | 0.214 (3) | 0.4526 (9) | 0.243 (8) | 0.418 (8) |
O9 | 1.009 (2) | 0.091 (3) | 0.5610 (10) | 0.293 (9) | 0.418 (8) |
N5 | 0.9777 (12) | 0.3735 (18) | 0.5171 (5) | 0.123 (5) | 0.418 (8) |
C27 | 0.9570 (12) | 0.509 (2) | 0.5539 (7) | 0.127 (6) | 0.418 (8) |
C28 | 0.9308 (18) | 0.416 (3) | 0.4721 (7) | 0.155 (6) | 0.418 (8) |
C29 | 0.9450 (17) | 0.178 (2) | 0.5314 (8) | 0.189 (7) | 0.418 (8) |
Cl1 | 1.1695 (4) | 0.3682 (5) | 0.5004 (2) | 0.0599 (13) | 0.71 (4) |
Cl1' | 1.1562 (16) | 0.335 (4) | 0.5030 (8) | 0.105 (4) | 0.29 (4) |
H1A | 1.2138 (19) | 0.195 (6) | 0.7584 (12) | 0.0510* | |
H2A | 1.058 (3) | −0.147 (3) | 0.8046 (17) | 0.0470* | |
H3 | 1.30050 | 0.77880 | 0.92720 | 0.0970* | |
H4 | 1.13740 | 0.43170 | 0.78300 | 0.0440* | |
H5A | 0.88710 | 0.10050 | 0.81980 | 0.0840* | |
H5B | 0.93000 | 0.01770 | 0.86420 | 0.0840* | |
H5C | 0.92580 | −0.09830 | 0.81840 | 0.0840* | |
H7A | 0.87180 | 0.55920 | 0.82390 | 0.1210* | |
H7B | 0.88220 | 0.37850 | 0.85310 | 0.1210* | |
H7C | 0.86870 | 0.36680 | 0.79930 | 0.1210* | |
H9 | 1.18500 | 0.10790 | 0.87550 | 0.0600* | |
H10 | 1.25110 | 0.18830 | 0.94280 | 0.0800* | |
H11 | 1.29770 | 0.47850 | 0.95590 | 0.0560* | |
H13 | 1.19790 | 0.63560 | 0.83430 | 0.0490* | |
H3A | 1.438 (3) | −0.650 (4) | 0.6926 (18) | 0.0520* | |
H4A | 1.2747 (15) | −0.298 (6) | 0.7333 (12) | 0.0460* | |
H6 | 1.20900 | 0.28610 | 0.57340 | 0.0980* | |
H15 | 1.36510 | −0.06470 | 0.71780 | 0.0450* | |
H18A | 1.56130 | −0.59270 | 0.66170 | 0.0650* | |
H18B | 1.60600 | −0.46470 | 0.69810 | 0.0650* | |
H18C | 1.58990 | −0.39370 | 0.64740 | 0.0650* | |
H20A | 1.63180 | 0.05660 | 0.68470 | 0.0940* | |
H20B | 1.62150 | −0.10330 | 0.64860 | 0.0940* | |
H20C | 1.63110 | −0.14870 | 0.70150 | 0.0940* | |
H22 | 1.29940 | 0.13440 | 0.66780 | 0.0520* | |
H24 | 1.19930 | −0.01480 | 0.54690 | 0.0750* | |
H25 | 1.24050 | −0.32000 | 0.56140 | 0.0580* | |
H26 | 1.31810 | −0.38710 | 0.62770 | 0.0630* | |
H5' | 1.02570 | 0.37890 | 0.50300 | 0.1070* | 0.582 (8) |
H7' | 1.05360 | 0.69870 | 0.46880 | 0.4380* | 0.582 (8) |
H8' | 0.93090 | 0.14330 | 0.44390 | 0.2940* | 0.582 (8) |
H9' | 0.96880 | 0.35990 | 0.58530 | 0.3440* | 0.582 (8) |
H27C | 0.90620 | 0.65340 | 0.51610 | 0.1970* | 0.582 (8) |
H27D | 0.99630 | 0.63980 | 0.53990 | 0.1970* | 0.582 (8) |
H28C | 1.00590 | 0.47770 | 0.42850 | 0.1860* | 0.582 (8) |
H28D | 0.90690 | 0.45520 | 0.43450 | 0.1860* | 0.582 (8) |
H29C | 0.90130 | 0.19160 | 0.50820 | 0.1940* | 0.582 (8) |
H29D | 0.86190 | 0.37180 | 0.52960 | 0.1940* | 0.582 (8) |
H5 | 1.03480 | 0.37080 | 0.51210 | 0.1480* | 0.418 (8) |
H7 | 1.02490 | 0.69820 | 0.52970 | 0.2600* | 0.418 (8) |
H8 | 0.89780 | 0.22040 | 0.42600 | 0.3640* | 0.418 (8) |
H9A | 1.02430 | 0.16360 | 0.58100 | 0.4400* | 0.418 (8) |
H27A | 0.89810 | 0.54520 | 0.55010 | 0.1530* | 0.418 (8) |
H27B | 0.96140 | 0.44670 | 0.58370 | 0.1530* | 0.418 (8) |
H28A | 0.96520 | 0.48940 | 0.45120 | 0.1870* | 0.418 (8) |
H28B | 0.87730 | 0.47860 | 0.47790 | 0.1870* | 0.418 (8) |
H29A | 0.89170 | 0.18930 | 0.54810 | 0.2270* | 0.418 (8) |
H29B | 0.93540 | 0.10410 | 0.50390 | 0.2270* | 0.418 (8) |
U11 | U22 | U33 | U12 | U13 | U23 | |
O1 | 0.061 (3) | 0.059 (3) | 0.068 (3) | 0.0137 (19) | 0.012 (2) | −0.020 (2) |
O2 | 0.053 (2) | 0.0307 (19) | 0.138 (4) | 0.0040 (16) | −0.002 (3) | −0.003 (2) |
O3 | 0.107 (4) | 0.056 (3) | 0.077 (3) | −0.022 (2) | −0.041 (3) | −0.006 (2) |
N1 | 0.040 (2) | 0.039 (2) | 0.049 (3) | 0.0013 (18) | 0.0200 (19) | −0.0030 (19) |
N2 | 0.042 (2) | 0.0253 (19) | 0.051 (3) | −0.0083 (16) | 0.007 (2) | 0.0034 (18) |
C1 | 0.042 (3) | 0.034 (2) | 0.043 (3) | −0.001 (2) | 0.002 (2) | 0.006 (2) |
C2 | 0.042 (3) | 0.027 (2) | 0.033 (3) | −0.0009 (18) | 0.006 (2) | −0.0004 (19) |
C3 | 0.031 (3) | 0.033 (2) | 0.042 (3) | −0.0068 (18) | 0.003 (2) | −0.003 (2) |
C4 | 0.025 (2) | 0.040 (2) | 0.044 (3) | −0.0119 (18) | 0.008 (2) | 0.007 (2) |
C5 | 0.042 (3) | 0.049 (3) | 0.076 (4) | −0.006 (2) | 0.012 (3) | 0.008 (3) |
C6 | 0.054 (3) | 0.021 (2) | 0.067 (4) | 0.008 (2) | 0.007 (3) | 0.006 (2) |
C7 | 0.053 (4) | 0.040 (3) | 0.148 (6) | 0.014 (2) | 0.004 (4) | −0.035 (3) |
C8 | 0.026 (2) | 0.026 (2) | 0.047 (3) | 0.0025 (16) | 0.010 (2) | 0.005 (2) |
C9 | 0.056 (4) | 0.028 (3) | 0.067 (4) | 0.006 (2) | −0.008 (3) | 0.008 (3) |
C10 | 0.075 (4) | 0.077 (4) | 0.048 (4) | 0.008 (3) | −0.003 (3) | 0.009 (3) |
C11 | 0.047 (3) | 0.054 (3) | 0.038 (3) | −0.004 (2) | −0.004 (2) | −0.004 (3) |
C12 | 0.055 (4) | 0.045 (3) | 0.045 (3) | 0.002 (2) | 0.004 (3) | −0.009 (2) |
C13 | 0.040 (3) | 0.038 (3) | 0.045 (3) | −0.010 (2) | 0.004 (2) | 0.002 (2) |
O4 | 0.042 (2) | 0.0386 (19) | 0.060 (2) | −0.0107 (14) | 0.0150 (17) | −0.0007 (17) |
O5 | 0.049 (2) | 0.0261 (19) | 0.164 (5) | 0.0039 (16) | 0.005 (3) | −0.005 (2) |
O6 | 0.131 (5) | 0.055 (3) | 0.060 (3) | 0.037 (3) | −0.003 (3) | 0.002 (2) |
N3 | 0.037 (2) | 0.0276 (19) | 0.066 (3) | −0.0065 (16) | 0.015 (2) | 0.002 (2) |
N4 | 0.029 (2) | 0.040 (2) | 0.045 (3) | 0.0097 (16) | 0.0058 (17) | −0.0005 (19) |
C14 | 0.028 (2) | 0.045 (3) | 0.036 (3) | −0.007 (2) | 0.009 (2) | 0.010 (2) |
C15 | 0.043 (3) | 0.021 (2) | 0.048 (3) | −0.0082 (18) | 0.002 (2) | 0.0019 (19) |
C16 | 0.031 (3) | 0.026 (2) | 0.044 (3) | −0.0033 (17) | 0.004 (2) | −0.0038 (19) |
C17 | 0.023 (2) | 0.040 (3) | 0.051 (3) | 0.0007 (17) | 0.003 (2) | −0.001 (2) |
C18 | 0.037 (3) | 0.030 (2) | 0.063 (3) | 0.0072 (19) | 0.013 (3) | 0.001 (2) |
C19 | 0.024 (2) | 0.042 (2) | 0.059 (3) | 0.0027 (19) | −0.007 (2) | 0.015 (2) |
C20 | 0.026 (3) | 0.055 (3) | 0.108 (5) | −0.003 (2) | 0.006 (3) | −0.012 (3) |
C21 | 0.029 (3) | 0.050 (3) | 0.044 (3) | 0.002 (2) | 0.005 (2) | 0.001 (2) |
C22 | 0.046 (3) | 0.038 (3) | 0.047 (3) | −0.001 (2) | 0.002 (2) | −0.004 (2) |
C23 | 0.044 (3) | 0.051 (3) | 0.055 (4) | 0.019 (2) | 0.003 (3) | −0.002 (2) |
C24 | 0.057 (4) | 0.068 (4) | 0.063 (4) | 0.002 (3) | 0.000 (3) | 0.003 (3) |
C25 | 0.053 (3) | 0.038 (3) | 0.054 (4) | −0.004 (2) | −0.005 (3) | −0.012 (2) |
C26 | 0.057 (4) | 0.049 (3) | 0.051 (3) | 0.014 (2) | 0.006 (3) | −0.001 (3) |
O7' | 0.300 (15) | 0.273 (14) | 0.303 (15) | 0.041 (11) | 0.023 (11) | 0.032 (11) |
O8' | 0.179 (10) | 0.264 (11) | 0.144 (9) | 0.084 (9) | −0.033 (8) | −0.031 (8) |
O9' | 0.216 (12) | 0.293 (13) | 0.179 (10) | 0.038 (11) | 0.014 (9) | 0.013 (10) |
N5' | 0.052 (3) | 0.122 (5) | 0.094 (7) | 0.026 (4) | −0.013 (5) | 0.019 (6) |
C27' | 0.145 (8) | 0.169 (9) | 0.177 (11) | 0.073 (7) | −0.024 (8) | −0.055 (8) |
C28' | 0.123 (9) | 0.208 (11) | 0.135 (10) | 0.047 (9) | −0.058 (8) | 0.033 (9) |
C29' | 0.149 (10) | 0.202 (12) | 0.134 (8) | −0.014 (9) | 0.049 (7) | −0.004 (9) |
O7 | 0.172 (11) | 0.180 (10) | 0.168 (11) | 0.049 (9) | 0.016 (9) | −0.031 (9) |
O8 | 0.220 (14) | 0.271 (14) | 0.237 (15) | 0.031 (12) | −0.010 (12) | 0.036 (12) |
O9 | 0.290 (16) | 0.301 (16) | 0.289 (16) | 0.052 (13) | 0.012 (13) | −0.013 (13) |
N5 | 0.117 (8) | 0.156 (8) | 0.097 (8) | −0.018 (7) | −0.001 (7) | 0.011 (7) |
C27 | 0.106 (9) | 0.138 (10) | 0.138 (10) | 0.006 (8) | 0.033 (8) | −0.028 (8) |
C28 | 0.123 (11) | 0.207 (11) | 0.136 (11) | 0.022 (10) | −0.025 (10) | 0.021 (10) |
C29 | 0.190 (12) | 0.213 (12) | 0.164 (11) | −0.001 (10) | −0.001 (10) | −0.021 (10) |
Cl1 | 0.075 (2) | 0.063 (3) | 0.0417 (17) | 0.0184 (10) | 0.0047 (18) | 0.0032 (18) |
Cl1' | 0.062 (4) | 0.174 (9) | 0.080 (5) | 0.046 (6) | 0.023 (6) | 0.036 (7) |
O1—C1 | 1.226 (6) | C10—C11 | 1.345 (9) |
O2—C6 | 1.231 (6) | C11—C12 | 1.359 (8) |
O3—C12 | 1.379 (7) | C12—C13 | 1.400 (8) |
O3—H3 | 0.8200 | C4—H4 | 0.9800 |
O4—C14 | 1.229 (5) | C5—H5C | 0.9600 |
O5—C19 | 1.197 (6) | C5—H5A | 0.9600 |
O6—C23 | 1.357 (7) | C5—H5B | 0.9600 |
O6—H6 | 0.8200 | C7—H7B | 0.9600 |
O7'—C27' | 1.51 (3) | C7—H7C | 0.9600 |
O8'—C28' | 1.55 (2) | C7—H7A | 0.9600 |
O9'—C29' | 1.57 (2) | C9—H9 | 0.9300 |
O7'—H7' | 0.8200 | C10—H10 | 0.9300 |
O8'—H8' | 0.8200 | C11—H11 | 0.9300 |
O9'—H9' | 0.8200 | C13—H13 | 0.9300 |
O7—C27 | 1.44 (2) | C15—C16 | 1.495 (7) |
O8—C28 | 1.59 (3) | C15—C21 | 1.536 (7) |
O9—C29 | 1.46 (4) | C16—C17 | 1.318 (6) |
O7—H7 | 0.8200 | C16—C19 | 1.461 (6) |
O8—H8 | 0.8200 | C17—C18 | 1.517 (7) |
O9—H9A | 0.8200 | C19—C20 | 1.535 (7) |
N1—C4 | 1.433 (6) | C21—C26 | 1.363 (8) |
N1—C1 | 1.341 (6) | C21—C22 | 1.377 (7) |
N2—C1 | 1.357 (7) | C22—C23 | 1.358 (8) |
N2—C2 | 1.364 (6) | C23—C24 | 1.385 (8) |
N1—H1A | 0.90 (3) | C24—C25 | 1.410 (8) |
N2—H2A | 0.88 (2) | C25—C26 | 1.383 (8) |
N3—C14 | 1.398 (7) | C15—H15 | 0.9800 |
N3—C17 | 1.394 (6) | C18—H18C | 0.9600 |
N4—C15 | 1.481 (6) | C18—H18A | 0.9600 |
N4—C14 | 1.307 (6) | C18—H18B | 0.9600 |
N3—H3A | 0.87 (3) | C20—H20B | 0.9600 |
N4—H4A | 0.88 (3) | C20—H20A | 0.9600 |
N5'—C27' | 1.535 (15) | C20—H20C | 0.9600 |
N5'—C29' | 1.453 (18) | C22—H22 | 0.9300 |
N5'—C28' | 1.523 (18) | C24—H24 | 0.9300 |
N5'—H5' | 0.9100 | C25—H25 | 0.9300 |
N5—C28 | 1.52 (3) | C26—H26 | 0.9300 |
N5—C27 | 1.48 (2) | C27'—H27C | 0.9700 |
N5—C29 | 1.57 (2) | C27'—H27D | 0.9700 |
N5—H5 | 0.9100 | C28'—H28C | 0.9700 |
C2—C5 | 1.476 (8) | C28'—H28D | 0.9700 |
C2—C3 | 1.394 (6) | C29'—H29C | 0.9700 |
C3—C6 | 1.464 (6) | C29'—H29D | 0.9700 |
C3—C4 | 1.535 (7) | C27—H27A | 0.9700 |
C4—C8 | 1.518 (6) | C27—H27B | 0.9700 |
C6—C7 | 1.429 (8) | C28—H28A | 0.9700 |
C8—C9 | 1.411 (7) | C28—H28B | 0.9700 |
C8—C13 | 1.373 (6) | C29—H29A | 0.9700 |
C9—C10 | 1.360 (9) | C29—H29B | 0.9700 |
C12—O3—H3 | 109.00 | N3—C14—N4 | 116.8 (4) |
C23—O6—H6 | 109.00 | C16—C15—C21 | 114.6 (4) |
C27'—O7'—H7' | 109.00 | N4—C15—C21 | 109.9 (4) |
C28'—O8'—H8' | 109.00 | N4—C15—C16 | 109.9 (3) |
C29'—O9'—H9' | 109.00 | C17—C16—C19 | 128.7 (4) |
C27—O7—H7 | 109.00 | C15—C16—C17 | 118.9 (4) |
C28—O8—H8 | 109.00 | C15—C16—C19 | 112.4 (3) |
C29—O9—H9A | 110.00 | C16—C17—C18 | 127.3 (4) |
C1—N1—C4 | 125.6 (4) | N3—C17—C18 | 111.8 (4) |
C1—N2—C2 | 127.1 (4) | N3—C17—C16 | 120.9 (4) |
C1—N1—H1A | 117 (3) | O5—C19—C16 | 119.8 (5) |
C4—N1—H1A | 118 (3) | O5—C19—C20 | 117.7 (4) |
C1—N2—H2A | 111 (3) | C16—C19—C20 | 122.4 (4) |
C2—N2—H2A | 119 (3) | C15—C21—C22 | 119.5 (4) |
C14—N3—C17 | 121.1 (4) | C22—C21—C26 | 119.6 (5) |
C14—N4—C15 | 123.1 (4) | C15—C21—C26 | 120.9 (4) |
C14—N3—H3A | 117 (3) | C21—C22—C23 | 122.2 (5) |
C17—N3—H3A | 121 (3) | C22—C23—C24 | 118.9 (5) |
C15—N4—H4A | 112 (3) | O6—C23—C24 | 122.7 (5) |
C14—N4—H4A | 120 (3) | O6—C23—C22 | 118.4 (5) |
C28'—N5'—C29' | 117.3 (10) | C23—C24—C25 | 119.6 (5) |
C27'—N5'—C29' | 109.3 (10) | C24—C25—C26 | 119.3 (5) |
C27'—N5'—C28' | 108.5 (10) | C21—C26—C25 | 120.3 (5) |
C27'—N5'—H5' | 107.00 | C16—C15—H15 | 107.00 |
C29'—N5'—H5' | 107.00 | C21—C15—H15 | 107.00 |
C28'—N5'—H5' | 107.00 | N4—C15—H15 | 107.00 |
C27—N5—C28 | 111.6 (15) | H18A—C18—H18C | 110.00 |
C27—N5—C29 | 110.0 (14) | C17—C18—H18C | 109.00 |
C28—N5—C29 | 104.4 (16) | H18A—C18—H18B | 109.00 |
C29—N5—H5 | 110.00 | C17—C18—H18B | 109.00 |
C28—N5—H5 | 110.00 | C17—C18—H18A | 109.00 |
C27—N5—H5 | 110.00 | H18B—C18—H18C | 109.00 |
O1—C1—N2 | 123.0 (4) | H20B—C20—H20C | 109.00 |
O1—C1—N1 | 123.2 (5) | C19—C20—H20B | 110.00 |
N1—C1—N2 | 113.8 (4) | H20A—C20—H20C | 109.00 |
N2—C2—C5 | 113.5 (4) | C19—C20—H20C | 109.00 |
C3—C2—C5 | 129.5 (4) | C19—C20—H20A | 109.00 |
N2—C2—C3 | 117.0 (4) | H20A—C20—H20B | 110.00 |
C2—C3—C6 | 125.2 (4) | C23—C22—H22 | 119.00 |
C4—C3—C6 | 116.8 (4) | C21—C22—H22 | 119.00 |
C2—C3—C4 | 118.0 (4) | C25—C24—H24 | 120.00 |
N1—C4—C3 | 109.4 (4) | C23—C24—H24 | 120.00 |
N1—C4—C8 | 113.9 (4) | C26—C25—H25 | 120.00 |
C3—C4—C8 | 110.1 (4) | C24—C25—H25 | 120.00 |
C3—C6—C7 | 125.5 (4) | C21—C26—H26 | 120.00 |
O2—C6—C3 | 115.9 (4) | C25—C26—H26 | 120.00 |
O2—C6—C7 | 118.6 (4) | O7'—C27'—N5' | 105.3 (12) |
C4—C8—C13 | 119.7 (4) | O8'—C28'—N5' | 105.8 (11) |
C9—C8—C13 | 118.6 (5) | O9'—C29'—N5' | 108.0 (13) |
C4—C8—C9 | 121.8 (4) | H27C—C27'—H27D | 109.00 |
C8—C9—C10 | 119.1 (5) | N5'—C27'—H27D | 111.00 |
C9—C10—C11 | 122.7 (6) | N5'—C27'—H27C | 111.00 |
C10—C11—C12 | 119.1 (5) | O7'—C27'—H27C | 111.00 |
O3—C12—C11 | 123.8 (5) | O7'—C27'—H27D | 111.00 |
C11—C12—C13 | 120.6 (5) | O8'—C28'—H28C | 111.00 |
O3—C12—C13 | 115.5 (5) | H28C—C28'—H28D | 109.00 |
C8—C13—C12 | 119.8 (5) | N5'—C28'—H28C | 111.00 |
N1—C4—H4 | 108.00 | O8'—C28'—H28D | 111.00 |
C8—C4—H4 | 108.00 | N5'—C28'—H28D | 111.00 |
C3—C4—H4 | 108.00 | N5'—C29'—H29C | 110.00 |
C2—C5—H5C | 109.00 | N5'—C29'—H29D | 110.00 |
H5A—C5—H5C | 109.00 | O9'—C29'—H29C | 110.00 |
C2—C5—H5B | 110.00 | O9'—C29'—H29D | 110.00 |
C2—C5—H5A | 109.00 | H29C—C29'—H29D | 108.00 |
H5A—C5—H5B | 109.00 | O7—C27—N5 | 117.1 (16) |
H5B—C5—H5C | 110.00 | O8—C28—N5 | 100.6 (16) |
H7A—C7—H7B | 109.00 | O9—C29—N5 | 108.6 (19) |
C6—C7—H7B | 109.00 | O7—C27—H27A | 108.00 |
H7B—C7—H7C | 109.00 | O7—C27—H27B | 108.00 |
C6—C7—H7C | 110.00 | N5—C27—H27A | 108.00 |
C6—C7—H7A | 109.00 | N5—C27—H27B | 108.00 |
H7A—C7—H7C | 109.00 | H27A—C27—H27B | 107.00 |
C8—C9—H9 | 120.00 | O8—C28—H28A | 112.00 |
C10—C9—H9 | 120.00 | O8—C28—H28B | 112.00 |
C9—C10—H10 | 119.00 | N5—C28—H28A | 112.00 |
C11—C10—H10 | 119.00 | N5—C28—H28B | 112.00 |
C10—C11—H11 | 120.00 | H28A—C28—H28B | 109.00 |
C12—C11—H11 | 120.00 | O9—C29—H29A | 110.00 |
C12—C13—H13 | 120.00 | O9—C29—H29B | 110.00 |
C8—C13—H13 | 120.00 | N5—C29—H29A | 110.00 |
O4—C14—N3 | 116.9 (4) | N5—C29—H29B | 110.00 |
O4—C14—N4 | 126.3 (4) | H29A—C29—H29B | 109.00 |
C4—N1—C1—O1 | −167.0 (5) | C3—C4—C8—C13 | −109.3 (5) |
C4—N1—C1—N2 | 15.3 (7) | C4—C8—C9—C10 | −179.3 (5) |
C1—N1—C4—C3 | −33.4 (6) | C9—C8—C13—C12 | −2.3 (8) |
C1—N1—C4—C8 | 90.3 (6) | C4—C8—C13—C12 | 179.8 (5) |
C2—N2—C1—O1 | −165.3 (5) | C13—C8—C9—C10 | 2.9 (8) |
C1—N2—C2—C5 | 165.7 (5) | C8—C9—C10—C11 | −3.0 (10) |
C1—N2—C2—C3 | −15.8 (7) | C9—C10—C11—C12 | 2.5 (11) |
C2—N2—C1—N1 | 12.4 (7) | C10—C11—C12—C13 | −1.8 (9) |
C14—N3—C17—C16 | −14.9 (7) | C10—C11—C12—O3 | −179.8 (6) |
C17—N3—C14—N4 | 11.1 (7) | C11—C12—C13—C8 | 1.8 (8) |
C17—N3—C14—O4 | −166.2 (4) | O3—C12—C13—C8 | 179.9 (5) |
C14—N3—C17—C18 | 167.0 (4) | N4—C15—C21—C22 | 125.6 (5) |
C14—N4—C15—C21 | 93.6 (5) | N4—C15—C21—C26 | −56.0 (6) |
C14—N4—C15—C16 | −33.4 (6) | C21—C15—C16—C19 | 83.2 (5) |
C15—N4—C14—O4 | −168.3 (4) | C21—C15—C16—C17 | −95.9 (5) |
C15—N4—C14—N3 | 14.6 (6) | N4—C15—C16—C19 | −152.5 (4) |
C27'—N5'—C29'—O9' | −82.1 (14) | C16—C15—C21—C22 | −110.1 (5) |
C27'—N5'—C28'—O8' | −179.9 (11) | C16—C15—C21—C26 | 68.3 (6) |
C29'—N5'—C27'—O7' | −162.5 (13) | N4—C15—C16—C17 | 28.4 (6) |
C28'—N5'—C29'—O9' | 154.1 (12) | C15—C16—C19—O5 | −1.3 (8) |
C29'—N5'—C28'—O8' | −55.6 (16) | C15—C16—C17—C18 | 170.8 (5) |
C28'—N5'—C27'—O7' | −33.6 (15) | C15—C16—C17—N3 | −7.0 (8) |
C5—C2—C3—C6 | −10.1 (9) | C17—C16—C19—O5 | 177.7 (6) |
C5—C2—C3—C4 | 171.8 (5) | C17—C16—C19—C20 | −4.8 (9) |
N2—C2—C3—C6 | 171.7 (5) | C15—C16—C19—C20 | 176.3 (5) |
N2—C2—C3—C4 | −6.4 (7) | C19—C16—C17—C18 | −8.2 (9) |
C2—C3—C6—C7 | −1.6 (9) | C19—C16—C17—N3 | 174.1 (5) |
C2—C3—C6—O2 | 178.2 (5) | C15—C21—C26—C25 | −179.0 (5) |
C4—C3—C6—C7 | 176.5 (6) | C26—C21—C22—C23 | −1.0 (8) |
C4—C3—C6—O2 | −3.7 (7) | C15—C21—C22—C23 | 177.4 (5) |
C6—C3—C4—N1 | −151.0 (4) | C22—C21—C26—C25 | −0.7 (8) |
C6—C3—C4—C8 | 83.2 (5) | C21—C22—C23—C24 | 1.0 (8) |
C2—C3—C4—N1 | 27.3 (6) | C21—C22—C23—O6 | −177.8 (5) |
C2—C3—C4—C8 | −98.6 (5) | O6—C23—C24—C25 | 179.4 (6) |
N1—C4—C8—C9 | −50.3 (6) | C22—C23—C24—C25 | 0.7 (8) |
N1—C4—C8—C13 | 127.5 (5) | C23—C24—C25—C26 | −2.3 (9) |
C3—C4—C8—C9 | 73.0 (6) | C24—C25—C26—C21 | 2.3 (9) |
Cg1 and Cg2 are the centroids of the C8–C13 and C21–C26 rings, respectively. |
D—H···A | D—H | H···A | D···A | D—H···A |
N1—H1A···O4i | 0.90 (3) | 2.06 (4) | 2.882 (6) | 151 (4) |
N2—H2A···O2ii | 0.88 (2) | 1.99 (3) | 2.865 (5) | 170 (5) |
O3—H3···Cl1iii | 0.82 | 2.26 | 3.044 (8) | 161 |
N3—H3A···O5ii | 0.87 (3) | 1.97 (3) | 2.839 (5) | 175 (3) |
N4—H4A···O1 | 0.88 (3) | 2.03 (3) | 2.836 (6) | 152 (3) |
O6—H6···Cl1 | 0.82 | 2.27 | 3.090 (7) | 173 |
C13—H13···O1i | 0.93 | 2.58 | 3.496 (7) | 171 |
C18—H18B···O1iv | 0.96 | 2.48 | 3.411 (7) | 164 |
C22—H22···O4i | 0.93 | 2.56 | 3.485 (6) | 171 |
C28′—H28D···Cg1v | 0.97 | 2.65 | 3.598 (17) | 166 |
C27—H27A···Cg2vi | 0.97 | 2.73 | 3.444 (19) | 131 |
Symmetry codes: (i) x, y+1, z; (ii) x, y−1, z; (iii) −x+5/2, y+1/2, z+1/2; (iv) x+1/2, −y−1/2, z; (v) −x+2, −y+1, z−1/2; (vi) x−1/2, −y+1/2, z. |
Cg1 and Cg2 are the centroids of the C8–C13 and C21–C26 rings, respectively. |
D—H···A | D—H | H···A | D···A | D—H···A |
N1—H1A···O4i | 0.90 (3) | 2.06 (4) | 2.882 (6) | 151 (4) |
N2—H2A···O2ii | 0.88 (2) | 1.99 (3) | 2.865 (5) | 170 (5) |
O3—H3···Cl1iii | 0.82 | 2.26 | 3.044 (8) | 161 |
N3—H3A···O5ii | 0.87 (3) | 1.97 (3) | 2.839 (5) | 175 (3) |
N4—H4A···O1 | 0.88 (3) | 2.03 (3) | 2.836 (6) | 152 (3) |
O6—H6···Cl1 | 0.82 | 2.27 | 3.090 (7) | 173 |
C13—H13···O1i | 0.93 | 2.58 | 3.496 (7) | 171 |
C18—H18B···O1iv | 0.96 | 2.48 | 3.411 (7) | 164 |
C22—H22···O4i | 0.93 | 2.56 | 3.485 (6) | 171 |
C28'—H28D···Cg1v | 0.97 | 2.65 | 3.598 (17) | 166 |
C27—H27A···Cg2vi | 0.97 | 2.73 | 3.444 (19) | 131 |
Symmetry codes: (i) x, y+1, z; (ii) x, y−1, z; (iii) −x+5/2, y+1/2, z+1/2; (iv) x+1/2, −y−1/2, z; (v) −x+2, −y+1, z−1/2; (vi) x−1/2, −y+1/2, z. |
Acknowledgements
The authors are grateful to the SAIF, IIT Madras, for the data collection.
References
Allen, F. H., Kennard, O., Watson, D. G., Brammer, L., Orpen, A. G. & Taylor, R. (1987). J. Chem. Soc. Perkin Trans. 2, pp. S1–19. CrossRef Web of Science Google Scholar
Bernstein, J., Davis, R. E., Shimoni, L. & Chang, N.-L. (1995). Angew. Chem. Int. Ed. Engl. 34, 1555–1573. CrossRef CAS Web of Science Google Scholar
Bruker (2004). APEX2, SAINT, XPREP and SADABS. Bruker AXS Inc., Madison, Wisconsin, USA. Google Scholar
Cremer, D. & Pople, J. A. (1975). J. Am. Chem. Soc. 97, 1354–1358. CrossRef CAS Web of Science Google Scholar
Farrugia, L. J. (2012). J. Appl. Cryst. 45, 849–854. Web of Science CrossRef CAS IUCr Journals Google Scholar
Macrae, C. F., Bruno, I. J., Chisholm, J. A., Edgington, P. R., McCabe, P., Pidcock, E., Rodriguez-Monge, L., Taylor, R., van de Streek, J. & Wood, P. A. (2008). J. Appl. Cryst. 41, 466–470. Web of Science CrossRef CAS IUCr Journals Google Scholar
Nardelli, M. (1983). Acta Cryst. C39, 1141–1142. CrossRef CAS Web of Science IUCr Journals Google Scholar
Nizam Mohideen, M., Rasheeth, A. & Huq, C. A. M. A. (2008b). Acta Cryst. E64, o1812. Web of Science CSD CrossRef IUCr Journals Google Scholar
Nizam Mohideen, M., Rasheeth, A., Huq, C. A. M. A. & Nizar, S. S. (2008a). Acta Cryst. E64, o1752. Web of Science CSD CrossRef IUCr Journals Google Scholar
Sheldrick, G. M. (2008). Acta Cryst. A64, 112–122. Web of Science CrossRef CAS IUCr Journals Google Scholar
Spek, A. L. (2009). Acta Cryst. D65, 148–155. Web of Science CrossRef CAS IUCr Journals Google Scholar
This is an open-access article distributed under the terms of the Creative Commons Attribution (CC-BY) Licence, which permits unrestricted use, distribution, and reproduction in any medium, provided the original authors and source are cited.
As part of our ongoing investigations of pyrimidine derivatives (NizamMohideen et al., 2008a,b), the title compound was synthesized and we report herein on its crystal structure.
In the asymmetric unit of the title compound there are two independent pyrimidine derivative molecules (A and B), and one nitrilotrimethanol hydrochloride molecule (Fig. 1). All bond lengths (Allen et al., 1987) and angles in the pyrimidine derivative are within normal ranges and comparable with those in closely related structures (NizamMohideen et al., 2008a,b). The normal probability plot analyses (International Tables for X-ray Crystallography, 1974, Vol. IV, pp. 293–309) for both bond lengths and angles show that the differences between the two symmetry independent molecules are of a statistical nature.
The dihydropyrimidine rings, (N1/N2/C1—C4) in molecule A and (N3/N4/C14—C17) in molecule B, adopt half-chair conformations. The puckering parameters (Cremer & Pople, 1975) and the lowest displacement asymmetry parameters (Nardelli, 1983), are q2 = 0.282 (5) Å, ϕ = 126.3 (10)°, θ = 108.4 (10)°, ΔS(C2/N1) is 16.9 (7)° and Δ2(N2/C4) is 15.8 (7)° for molecule A, and q2 =0.292 (5) Å, ϕ = 173.7 (9)°, θ = 72.0 (9)°, ΔS(C14/C16) is 18.4 (7)° and Δ2(N4/C17) is 16.1 (7)° for molecule B.
The dihedral angle between the mean plane of the pyrimidine ring and the benzene ring is 87.2 (3) in molecule A and 85.7 (2)° in molecule B. These values are close that of 86.5 (1)° found for Ethyl 6-methyl-2-oxo-4-phenyl-1,2,3,4-tetrahydropyrimidine-5-carboxylate (NizamMohideen et al., 2008a).
The crystal packing is stabilized by strong N—H···O and O—H···Cl inter- and intramolecular hydrogen bonds and week intra- and intermolecular C—H···O and C—H···Cl interaction (Fig. 2 and Table 1). In both molecules, atoms O2 and O5 act donors in strong intermolecular N—H···O hydrogen bonds via H2A and H3A with the pyrimidine ring atoms N2 and N3, respectively, of a symmetry related molecule, generating a C(6) chain (Bernstein et al., 1995). The interlinking of A and B molecules via strong N—H···O (N1—H1A···O4 and N4—H4A···O1) hydrogen bond generates infinite chains running along the a axis direction. The molecular packing is further stabilized by C—H···π interactions involving a methylene H atom of the tris(hydroxymethyl)ammonium cation and the pyrimidine ring of an adjacent molecule (Table 1). The crystal structure is further stabilized by O—H···Cl hydrogen bonds to form a three-dimensional supramolecular framework (Table 1 and Fig. 2).
The tris(hydroxymethyl)ammonium chloride molecule is disordered over two positions with refined occupancy ratios of 0.418 (8):0.528 (8) for the cation and 0.71 (4):0.29 (4) for the Cl- anion. The geometry was regularized by soft restraints.