Reaction of 2,4,6-tris(4-pyridyl)-1,3,5-triazine (tpt) with excess nitric acid in an aqueous solution affords the title compound, C18H15N63+·3NO3−. The torsion angles between adjacent aromatic rings are much larger than those of neutral tpt. All three pyridine N atoms are protonated.
Supporting information
CCDC reference: 640236
Key indicators
- Single-crystal X-ray study
- T = 273 K
- Mean (C-C) = 0.003 Å
- R factor = 0.033
- wR factor = 0.082
- Data-to-parameter ratio = 6.8
checkCIF/PLATON results
No syntax errors found
Alert level C
PLAT042_ALERT_1_C Calc. and Rep. MoietyFormula Strings Differ .... ?
PLAT066_ALERT_1_C Predicted and Reported Transmissions Identical . ?
PLAT089_ALERT_3_C Poor Data / Parameter Ratio (Zmax .LT. 18) ..... 6.80
PLAT125_ALERT_4_C No _symmetry_space_group_name_Hall Given ....... ?
PLAT244_ALERT_4_C Low 'Solvent' Ueq as Compared to Neighbors for N7
PLAT244_ALERT_4_C Low 'Solvent' Ueq as Compared to Neighbors for N8
PLAT244_ALERT_4_C Low 'Solvent' Ueq as Compared to Neighbors for N9
Alert level G
REFLT03_ALERT_4_G Please check that the estimate of the number of Friedel pairs is
correct. If it is not, please give the correct count in the
_publ_section_exptl_refinement section of the submitted CIF.
From the CIF: _diffrn_reflns_theta_max 27.50
From the CIF: _reflns_number_total 2300
Count of symmetry unique reflns 2312
Completeness (_total/calc) 99.48%
TEST3: Check Friedels for noncentro structure
Estimate of Friedel pairs measured 0
Fraction of Friedel pairs measured 0.000
Are heavy atom types Z>Si present no
0 ALERT level A = In general: serious problem
0 ALERT level B = Potentially serious problem
7 ALERT level C = Check and explain
1 ALERT level G = General alerts; check
2 ALERT type 1 CIF construction/syntax error, inconsistent or missing data
0 ALERT type 2 Indicator that the structure model may be wrong or deficient
1 ALERT type 3 Indicator that the structure quality may be low
5 ALERT type 4 Improvement, methodology, query or suggestion
0 ALERT type 5 Informative message, check
Data collection: APEX2 (Bruker, 2000); cell refinement: SAINT (Bruker, 2000); data reduction: SAINT; program(s) used to solve structure: SHELXS97 (Sheldrick, 1997); program(s) used to refine structure: SHELXL97 (Sheldrick, 1997); molecular graphics: SHELXTL (Sheldrick, 2000); software used to prepare material for publication: SHELXTL.
4,4',4''-(1,3,5-Triazine-2,4,6-triyl)tripyridinium trinitrate
top
Crystal data top
C18H15N63+·3NO3− | F(000) = 1032 |
Mr = 501.39 | Dx = 1.657 Mg m−3 |
Monoclinic, Cc | Mo Kα radiation, λ = 0.71073 Å |
a = 9.8940 (12) Å | Cell parameters from 2778 reflections |
b = 21.637 (3) Å | θ = 2.4–27.1° |
c = 9.9734 (12) Å | µ = 0.14 mm−1 |
β = 109.671 (1)° | T = 273 K |
V = 2010.4 (4) Å3 | Rhomb, pale_brown |
Z = 4 | 0.40 × 0.20 × 0.20 mm |
Data collection top
Bruker APEX-II area-detector diffractometer | 2300 independent reflections |
Radiation source: fine-focus sealed tube | 2078 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.021 |
ω scans | θmax = 27.5°, θmin = 2.4° |
Absorption correction: multi-scan (SADABS; Sheldrick, 1996) | h = −11→12 |
Tmin = 0.948, Tmax = 0.973 | k = −28→27 |
6240 measured reflections | l = −12→12 |
Refinement top
Refinement on F2 | Secondary atom site location: difference Fourier map |
Least-squares matrix: full | Hydrogen site location: inferred from neighbouring sites |
R[F2 > 2σ(F2)] = 0.033 | H atoms treated by a mixture of independent and constrained refinement |
wR(F2) = 0.082 | w = 1/[σ2(Fo2) + (0.0501P)2 + 0.2046P] where P = (Fo2 + 2Fc2)/3 |
S = 1.05 | (Δ/σ)max < 0.001 |
2300 reflections | Δρmax = 0.21 e Å−3 |
338 parameters | Δρmin = −0.21 e Å−3 |
2 restraints | Extinction correction: SHELXL97, Fc*=kFc[1+0.001xFc2λ3/sin(2θ)]-1/4 |
Primary atom site location: structure-invariant direct methods | Extinction coefficient: 0.0040 (6) |
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 | x | y | z | Uiso*/Ueq | |
C1 | 0.7969 (2) | 0.76683 (10) | 0.0970 (2) | 0.0245 (5) | |
C2 | 0.7684 (2) | 0.86961 (10) | 0.0974 (2) | 0.0244 (5) | |
C3 | 0.8598 (2) | 0.81840 (10) | 0.3040 (2) | 0.0240 (5) | |
C4 | 0.9157 (3) | 0.81854 (10) | 0.4621 (2) | 0.0243 (5) | |
C5 | 0.9556 (3) | 0.87405 (10) | 0.5364 (2) | 0.0287 (5) | |
H5 | 0.9484 | 0.9112 | 0.4876 | 0.034* | |
C6 | 1.0056 (3) | 0.87302 (13) | 0.6829 (3) | 0.0357 (6) | |
H6 | 1.0329 | 0.9095 | 0.7342 | 0.043* | |
C7 | 0.9785 (3) | 0.76513 (12) | 0.6828 (3) | 0.0361 (6) | |
H7 | 0.9869 | 0.7288 | 0.7347 | 0.043* | |
C8 | 0.9289 (3) | 0.76342 (11) | 0.5362 (3) | 0.0314 (5) | |
H8 | 0.9047 | 0.7261 | 0.4880 | 0.038* | |
C9 | 0.7775 (2) | 0.70777 (10) | 0.0144 (2) | 0.0236 (5) | |
C10 | 0.7965 (3) | 0.65085 (10) | 0.0827 (3) | 0.0303 (5) | |
H10 | 0.8307 | 0.6484 | 0.1816 | 0.036* | |
C11 | 0.7637 (3) | 0.59791 (11) | 0.0007 (3) | 0.0358 (6) | |
H11 | 0.7726 | 0.5594 | 0.0441 | 0.043* | |
C12 | 0.7053 (3) | 0.65594 (12) | −0.2084 (3) | 0.0381 (6) | |
H12 | 0.6767 | 0.6568 | −0.3073 | 0.046* | |
C13 | 0.7330 (3) | 0.71033 (11) | −0.1331 (3) | 0.0312 (5) | |
H13 | 0.7222 | 0.7481 | −0.1800 | 0.037* | |
C14 | 0.7142 (3) | 0.92783 (9) | 0.0180 (2) | 0.0259 (5) | |
C15 | 0.6278 (3) | 0.92505 (11) | −0.1242 (3) | 0.0341 (6) | |
H15 | 0.6087 | 0.8874 | −0.1720 | 0.041* | |
C16 | 0.5708 (3) | 0.97917 (13) | −0.1930 (3) | 0.0403 (6) | |
H16 | 0.5123 | 0.9783 | −0.2881 | 0.048* | |
C17 | 0.6828 (3) | 1.03675 (11) | 0.0123 (3) | 0.0367 (6) | |
H17 | 0.6997 | 1.0751 | 0.0570 | 0.044* | |
C18 | 0.7437 (3) | 0.98466 (10) | 0.0863 (3) | 0.0308 (5) | |
H18 | 0.8038 | 0.9873 | 0.1807 | 0.037* | |
H4A | 1.048 (4) | 0.8167 (18) | 0.841 (5) | 0.071 (12)* | |
H5A | 0.696 (4) | 0.5691 (17) | −0.204 (4) | 0.062 (10)* | |
H6A | 0.558 (4) | 1.0645 (15) | −0.179 (3) | 0.047 (9)* | |
N1 | 0.8492 (2) | 0.76378 (8) | 0.2383 (2) | 0.0264 (4) | |
N2 | 0.7533 (2) | 0.81794 (8) | 0.0208 (2) | 0.0266 (4) | |
N3 | 0.8226 (2) | 0.87272 (8) | 0.23940 (19) | 0.0263 (4) | |
N4 | 1.0145 (3) | 0.81930 (11) | 0.7506 (2) | 0.0386 (5) | |
N5 | 0.7191 (3) | 0.60213 (10) | −0.1409 (3) | 0.0381 (5) | |
N6 | 0.5996 (3) | 1.03253 (10) | −0.1234 (3) | 0.0387 (5) | |
N7 | 0.3805 (2) | 0.91123 (9) | 0.0212 (2) | 0.0331 (5) | |
N8 | 0.6079 (2) | 0.80094 (9) | 0.5292 (2) | 0.0297 (4) | |
N9 | 0.0472 (3) | 0.04132 (9) | 0.5145 (2) | 0.0331 (4) | |
O1 | 0.3186 (3) | 0.87619 (10) | −0.0780 (2) | 0.0583 (6) | |
O2 | 0.3768 (2) | 0.96804 (9) | 0.0031 (2) | 0.0492 (5) | |
O3 | 0.4505 (3) | 0.88892 (9) | 0.1404 (2) | 0.0573 (6) | |
O4 | 0.5819 (3) | 0.83154 (9) | 0.4186 (2) | 0.0490 (6) | |
O5 | 0.6594 (3) | 0.82693 (8) | 0.6469 (2) | 0.0498 (6) | |
O6 | 0.5829 (2) | 0.74439 (8) | 0.5232 (2) | 0.0428 (5) | |
O7 | 0.0043 (3) | 0.00839 (9) | 0.4068 (2) | 0.0511 (6) | |
O8 | 0.0252 (3) | 0.09767 (8) | 0.5067 (2) | 0.0505 (5) | |
O9 | 0.1116 (3) | 0.01682 (9) | 0.6336 (2) | 0.0508 (6) | |
Atomic displacement parameters (Å2) top | U11 | U22 | U33 | U12 | U13 | U23 |
C1 | 0.0300 (11) | 0.0189 (10) | 0.0229 (11) | 0.0003 (9) | 0.0066 (9) | −0.0023 (9) |
C2 | 0.0303 (12) | 0.0190 (10) | 0.0222 (11) | 0.0022 (9) | 0.0068 (9) | 0.0011 (8) |
C3 | 0.0291 (12) | 0.0204 (11) | 0.0214 (11) | −0.0009 (9) | 0.0071 (9) | 0.0002 (8) |
C4 | 0.0272 (11) | 0.0237 (11) | 0.0190 (11) | 0.0024 (9) | 0.0037 (9) | 0.0011 (9) |
C5 | 0.0344 (13) | 0.0249 (11) | 0.0230 (12) | 0.0003 (10) | 0.0047 (10) | −0.0002 (9) |
C6 | 0.0415 (14) | 0.0370 (13) | 0.0238 (12) | −0.0026 (11) | 0.0045 (10) | −0.0059 (10) |
C7 | 0.0450 (15) | 0.0343 (13) | 0.0260 (13) | 0.0060 (12) | 0.0080 (11) | 0.0099 (10) |
C8 | 0.0408 (14) | 0.0244 (11) | 0.0264 (13) | 0.0002 (10) | 0.0079 (11) | 0.0015 (10) |
C9 | 0.0280 (11) | 0.0182 (10) | 0.0222 (11) | 0.0016 (8) | 0.0053 (9) | −0.0021 (8) |
C10 | 0.0364 (13) | 0.0212 (11) | 0.0307 (13) | 0.0028 (10) | 0.0080 (10) | 0.0011 (10) |
C11 | 0.0421 (14) | 0.0189 (11) | 0.0440 (16) | 0.0038 (10) | 0.0113 (12) | −0.0018 (10) |
C12 | 0.0493 (16) | 0.0324 (13) | 0.0278 (14) | 0.0005 (11) | 0.0067 (12) | −0.0086 (10) |
C13 | 0.0410 (13) | 0.0236 (11) | 0.0260 (13) | 0.0011 (10) | 0.0073 (10) | −0.0026 (9) |
C14 | 0.0348 (12) | 0.0210 (10) | 0.0214 (11) | 0.0029 (9) | 0.0089 (9) | 0.0021 (9) |
C15 | 0.0470 (14) | 0.0306 (12) | 0.0224 (12) | 0.0074 (11) | 0.0088 (11) | 0.0018 (9) |
C16 | 0.0495 (16) | 0.0433 (15) | 0.0251 (14) | 0.0124 (12) | 0.0085 (12) | 0.0126 (11) |
C17 | 0.0429 (15) | 0.0226 (11) | 0.0465 (16) | 0.0028 (10) | 0.0174 (13) | 0.0049 (11) |
C18 | 0.0376 (13) | 0.0214 (11) | 0.0313 (14) | 0.0009 (10) | 0.0090 (11) | 0.0003 (9) |
N1 | 0.0367 (11) | 0.0204 (9) | 0.0187 (9) | 0.0007 (8) | 0.0047 (8) | 0.0007 (7) |
N2 | 0.0367 (11) | 0.0193 (9) | 0.0193 (10) | 0.0007 (8) | 0.0036 (8) | −0.0006 (7) |
N3 | 0.0365 (11) | 0.0207 (9) | 0.0185 (10) | −0.0008 (8) | 0.0049 (8) | 0.0003 (7) |
N4 | 0.0451 (13) | 0.0503 (14) | 0.0158 (10) | 0.0010 (11) | 0.0040 (9) | 0.0009 (10) |
N5 | 0.0437 (13) | 0.0259 (11) | 0.0412 (14) | −0.0013 (9) | 0.0097 (10) | −0.0135 (10) |
N6 | 0.0446 (13) | 0.0279 (11) | 0.0464 (15) | 0.0130 (10) | 0.0190 (11) | 0.0182 (10) |
N7 | 0.0388 (11) | 0.0260 (10) | 0.0328 (11) | −0.0023 (9) | 0.0098 (9) | −0.0065 (9) |
N8 | 0.0375 (11) | 0.0252 (9) | 0.0237 (10) | −0.0018 (9) | 0.0069 (8) | −0.0034 (8) |
N9 | 0.0453 (12) | 0.0257 (9) | 0.0277 (10) | −0.0055 (9) | 0.0116 (9) | −0.0041 (9) |
O1 | 0.0785 (16) | 0.0408 (11) | 0.0368 (12) | −0.0042 (11) | −0.0056 (11) | −0.0105 (9) |
O2 | 0.0620 (13) | 0.0272 (9) | 0.0537 (14) | 0.0045 (9) | 0.0134 (10) | −0.0009 (9) |
O3 | 0.0818 (17) | 0.0391 (11) | 0.0328 (12) | −0.0066 (11) | −0.0048 (11) | 0.0016 (9) |
O4 | 0.0817 (16) | 0.0318 (10) | 0.0225 (10) | −0.0141 (9) | 0.0032 (9) | 0.0024 (7) |
O5 | 0.0841 (16) | 0.0344 (10) | 0.0239 (10) | −0.0056 (10) | 0.0087 (10) | −0.0085 (8) |
O6 | 0.0655 (14) | 0.0240 (8) | 0.0330 (10) | −0.0057 (9) | 0.0087 (9) | −0.0004 (8) |
O7 | 0.0789 (16) | 0.0358 (10) | 0.0295 (11) | −0.0085 (10) | 0.0065 (10) | −0.0098 (8) |
O8 | 0.0728 (15) | 0.0285 (9) | 0.0422 (11) | 0.0018 (9) | 0.0087 (10) | −0.0029 (9) |
O9 | 0.0856 (16) | 0.0334 (10) | 0.0256 (10) | −0.0018 (10) | 0.0083 (10) | −0.0008 (8) |
Geometric parameters (Å, º) top
C1—N2 | 1.329 (3) | C12—C13 | 1.373 (3) |
C1—N1 | 1.329 (3) | C12—H12 | 0.930 |
C1—C9 | 1.497 (3) | C13—H13 | 0.930 |
C2—N2 | 1.334 (3) | C14—C18 | 1.388 (3) |
C2—N3 | 1.336 (3) | C14—C15 | 1.390 (3) |
C2—C14 | 1.488 (3) | C15—C16 | 1.378 (3) |
C3—N3 | 1.331 (3) | C15—H15 | 0.930 |
C3—N1 | 1.338 (3) | C16—N6 | 1.328 (4) |
C3—C4 | 1.485 (3) | C16—H16 | 0.930 |
C4—C8 | 1.386 (3) | C17—N6 | 1.329 (4) |
C4—C5 | 1.397 (3) | C17—C18 | 1.371 (3) |
C5—C6 | 1.376 (3) | C17—H17 | 0.930 |
C5—H5 | 0.930 | C18—H18 | 0.930 |
C6—N4 | 1.332 (4) | N4—H4A | 0.85 (4) |
C6—H6 | 0.930 | N5—H5A | 0.93 (4) |
C7—N4 | 1.340 (4) | N6—H6A | 0.90 (3) |
C7—C8 | 1.377 (4) | N7—O1 | 1.233 (3) |
C7—H7 | 0.930 | N7—O2 | 1.241 (3) |
C8—H8 | 0.930 | N7—O3 | 1.254 (3) |
C9—C13 | 1.387 (3) | N8—O4 | 1.237 (3) |
C9—C10 | 1.389 (3) | N8—O5 | 1.246 (3) |
C10—C11 | 1.381 (3) | N8—O6 | 1.245 (2) |
C10—H10 | 0.930 | N9—O8 | 1.236 (3) |
C11—N5 | 1.333 (4) | N9—O7 | 1.239 (3) |
C11—H11 | 0.930 | N9—O9 | 1.260 (3) |
C12—N5 | 1.328 (3) | | |
| | | |
N2—C1—N1 | 125.68 (19) | C9—C13—H13 | 120.7 |
N2—C1—C9 | 116.02 (19) | C18—C14—C15 | 119.7 (2) |
N1—C1—C9 | 118.22 (19) | C18—C14—C2 | 120.7 (2) |
N2—C2—N3 | 125.23 (19) | C15—C14—C2 | 119.6 (2) |
N2—C2—C14 | 116.98 (19) | C16—C15—C14 | 118.6 (2) |
N3—C2—C14 | 117.73 (18) | C16—C15—H15 | 120.7 |
N3—C3—N1 | 125.4 (2) | C14—C15—H15 | 120.7 |
N3—C3—C4 | 117.09 (19) | N6—C16—C15 | 119.9 (3) |
N1—C3—C4 | 117.5 (2) | N6—C16—H16 | 120.0 |
C8—C4—C5 | 119.8 (2) | C15—C16—H16 | 120.0 |
C8—C4—C3 | 120.0 (2) | N6—C17—C18 | 120.1 (2) |
C5—C4—C3 | 120.2 (2) | N6—C17—H17 | 120.0 |
C6—C5—C4 | 119.1 (2) | C18—C17—H17 | 120.0 |
C6—C5—H5 | 120.5 | C17—C18—C14 | 118.8 (2) |
C4—C5—H5 | 120.5 | C17—C18—H18 | 120.6 |
N4—C6—C5 | 119.4 (2) | C14—C18—H18 | 120.6 |
N4—C6—H6 | 120.3 | C1—N1—C3 | 114.44 (18) |
C5—C6—H6 | 120.3 | C1—N2—C2 | 114.68 (19) |
N4—C7—C8 | 119.9 (2) | C3—N3—C2 | 114.53 (18) |
N4—C7—H7 | 120.1 | C6—N4—C7 | 123.2 (2) |
C8—C7—H7 | 120.1 | C6—N4—H4A | 122 (3) |
C7—C8—C4 | 118.6 (2) | C7—N4—H4A | 115 (3) |
C7—C8—H8 | 120.7 | C12—N5—C11 | 122.5 (2) |
C4—C8—H8 | 120.7 | C12—N5—H5A | 112 (2) |
C13—C9—C10 | 119.8 (2) | C11—N5—H5A | 126 (2) |
C13—C9—C1 | 119.0 (2) | C16—N6—C17 | 122.9 (2) |
C10—C9—C1 | 121.1 (2) | C16—N6—H6A | 112 (2) |
C11—C10—C9 | 118.6 (2) | C17—N6—H6A | 125 (2) |
C11—C10—H10 | 120.7 | O1—N7—O2 | 120.7 (2) |
C9—C10—H10 | 120.7 | O1—N7—O3 | 119.4 (2) |
N5—C11—C10 | 119.9 (2) | O2—N7—O3 | 119.9 (2) |
N5—C11—H11 | 120.1 | O4—N8—O5 | 119.7 (2) |
C10—C11—H11 | 120.1 | O4—N8—O6 | 120.3 (2) |
N5—C12—C13 | 120.4 (2) | O5—N8—O6 | 120.0 (2) |
N5—C12—H12 | 119.8 | O8—N9—O7 | 120.7 (2) |
C13—C12—H12 | 119.8 | O8—N9—O9 | 119.8 (2) |
C12—C13—C9 | 118.7 (2) | O7—N9—O9 | 119.5 (2) |
C12—C13—H13 | 120.7 | | |
Hydrogen-bond geometry (Å, º) top
D—H···A | D—H | H···A | D···A | D—H···A |
N6—H6A···O4i | 0.90 (3) | 2.43 (3) | 2.984 (3) | 120 (3) |
N5—H5A···O9ii | 0.93 (4) | 1.92 (4) | 2.826 (3) | 165 (3) |
N4—H4A···O8iii | 0.85 (4) | 2.54 (4) | 3.095 (3) | 124 (3) |
N4—H4A···O6iv | 0.85 (4) | 2.18 (4) | 2.917 (3) | 145 (4) |
Symmetry codes: (i) x, −y+2, z−1/2; (ii) x+1/2, y+1/2, z−1; (iii) x+1, −y+1, z+1/2; (iv) x+1/2, −y+3/2, z+1/2. |