organic compounds
2-[({[Bis(pyridin-2-yl)methylidene]hydrazinecarbonyl}hydrazinylidene)(pyridin-2-yl)methyl]pyridinium tetrafluoroborate
aSchool of Environment Science and Spatial Informatics, China University of Mining and Technology, Xuzhou 221116, Jiangsu Province, People's Republic of China
*Correspondence e-mail: zhangjie973@126.com
In the title compound, C23H19N8O+·BF4−, one pyridine N atom is protonated. Two intramolecular N—H⋯N hydrogen bonds occur. In the crystal, intermolecular N—H⋯N hydrogen bond links neighboring C23H19N8O+ units into cyclic supramolecular dimers while C—H⋯O hydrogen bonds link the C23H19N8O+ units into a two-dimensional supramolecular network structure.
Related literature
For the synthesis and et al. (2005). For a tetranuclear iron(II) complex based on a derivative of the title compound, see: Wu et al. (2009).
of the precursor ligand, 1,3-bis(bis(2-pyridyl)methylene)amino)urea, see: ManojExperimental
Crystal data
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Refinement
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Data collection: APEX2 (Bruker, 2004); cell SAINT-Plus (Bruker, 2001); data reduction: SAINT-Plus; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: XP in SHELXTL (Sheldrick, 2008); software used to prepare material for publication: SHELXL97.
Supporting information
10.1107/S1600536811025359/ez2251sup1.cif
contains datablocks global, I. DOI:Structure factors: contains datablock I. DOI: 10.1107/S1600536811025359/ez2251Isup2.hkl
Supporting information file. DOI: 10.1107/S1600536811025359/ez2251Isup3.cml
The title complex was prepared as following: a methanol solution (5 ml) of [FeII(BF4)2].4H2O (60 mg, 0.2 mmol) was added slowly to a MeOH suspension (20 ml) containing the ligand 1,3-bis(bis(2-pyridyl)methylene)amino)urea (84 mg, 0.2 mmol). After stirring 30 min, the mixture was then carefully filtered and the resulting solution was kept at room temperature for about two days, producing colorless block-shape crystals of (I) with high yield (ca 60%).
The coordinates of the three H atoms bound to three nitrogen atoms were found from difference Fourier maps and refined freely. H atoms bound to C atoms were placed using the HFIX commands in SHELXL-97, with C—H distances of 0.93 Å. All H atoms were allowed for as riding atoms with Uiso(H) = 1.2Ueq(C).
Data collection: APEX2 (Bruker, 2004); cell
SAINT-Plus (Bruker, 2001); data reduction: SAINT-Plus (Bruker, 2001); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: XP in SHELXTL (Sheldrick, 2008); software used to prepare material for publication: SHELXL97 (Sheldrick, 2008).Fig. 1. A view of (I) with the unique atom-labelling scheme. Displacement ellipsoids are drawn at the 30% probability level. | |
Fig. 2. A view of part of the crystal structure of (I) along the c axis, showing two-dimensional supramolecular structure through formed by N—H···N and C—H···O hydrogen bonds. |
C23H19N8O+·BF4− | Z = 2 |
Mr = 510.27 | F(000) = 524 |
Triclinic, P1 | Dx = 1.493 Mg m−3 |
Hall symbol: -P 1 | Mo Kα radiation, λ = 0.71073 Å |
a = 7.9187 (16) Å | Cell parameters from 3505 reflections |
b = 10.626 (2) Å | θ = 2.3–26.7° |
c = 13.623 (3) Å | µ = 0.12 mm−1 |
α = 90.03 (3)° | T = 123 K |
β = 91.50 (3)° | Block, colorless |
γ = 97.85 (3)° | 0.22 × 0.19 × 0.16 mm |
V = 1135.1 (4) Å3 |
Bruker APEXII CCD area-detector diffractometer | 5175 independent reflections |
Radiation source: fine-focus sealed tube | 4025 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.032 |
ϕ and ω scans | θmax = 27.5°, θmin = 3.0° |
Absorption correction: multi-scan (SADABS; Sheldrick, 2003) | h = −10→10 |
Tmin = 0.974, Tmax = 0.981 | k = −13→13 |
18299 measured reflections | l = −17→17 |
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)] = 0.048 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.151 | H atoms treated by a mixture of independent and constrained refinement |
S = 0.98 | w = 1/[σ2(Fo2) + (0.1033P)2 + 0.3032P] where P = (Fo2 + 2Fc2)/3 |
5175 reflections | (Δ/σ)max < 0.001 |
346 parameters | Δρmax = 0.68 e Å−3 |
0 restraints | Δρmin = −0.49 e Å−3 |
C23H19N8O+·BF4− | γ = 97.85 (3)° |
Mr = 510.27 | V = 1135.1 (4) Å3 |
Triclinic, P1 | Z = 2 |
a = 7.9187 (16) Å | Mo Kα radiation |
b = 10.626 (2) Å | µ = 0.12 mm−1 |
c = 13.623 (3) Å | T = 123 K |
α = 90.03 (3)° | 0.22 × 0.19 × 0.16 mm |
β = 91.50 (3)° |
Bruker APEXII CCD area-detector diffractometer | 5175 independent reflections |
Absorption correction: multi-scan (SADABS; Sheldrick, 2003) | 4025 reflections with I > 2σ(I) |
Tmin = 0.974, Tmax = 0.981 | Rint = 0.032 |
18299 measured reflections |
R[F2 > 2σ(F2)] = 0.048 | 0 restraints |
wR(F2) = 0.151 | H atoms treated by a mixture of independent and constrained refinement |
S = 0.98 | Δρmax = 0.68 e Å−3 |
5175 reflections | Δρmin = −0.49 e Å−3 |
346 parameters |
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. |
x | y | z | Uiso*/Ueq | ||
H1 | −0.020 (3) | 0.896 (2) | 0.6632 (16) | 0.033 (6)* | |
H30 | 0.224 (3) | 0.592 (2) | 0.5650 (17) | 0.041 (6)* | |
H40 | 0.141 (3) | 0.567 (2) | 0.3285 (17) | 0.038 (6)* | |
O1 | 0.07813 (16) | 0.75955 (10) | 0.40804 (8) | 0.0215 (3) | |
N1 | 0.05189 (17) | 0.93425 (12) | 0.70991 (9) | 0.0151 (3) | |
N2 | 0.16150 (16) | 0.75693 (12) | 0.60077 (9) | 0.0149 (3) | |
N3 | 0.17522 (17) | 0.65646 (12) | 0.54249 (9) | 0.0147 (3) | |
N4 | 0.16693 (18) | 0.56751 (12) | 0.38758 (10) | 0.0164 (3) | |
N6 | 0.15116 (17) | 0.43582 (12) | 0.22247 (9) | 0.0178 (3) | |
N7 | 0.20613 (16) | 0.14392 (12) | 0.42932 (9) | 0.0154 (3) | |
N8 | 0.32921 (18) | 0.55934 (13) | 0.69471 (10) | 0.0210 (3) | |
N5 | 0.21894 (16) | 0.46491 (12) | 0.43220 (9) | 0.0147 (3) | |
C13 | 0.24217 (19) | 0.36556 (14) | 0.38154 (11) | 0.0143 (3) | |
C8 | 0.27284 (19) | 0.65124 (14) | 0.74875 (11) | 0.0163 (3) | |
C19 | 0.22420 (19) | 0.34758 (14) | 0.27322 (11) | 0.0152 (3) | |
C14 | 0.29165 (19) | 0.26067 (14) | 0.44455 (11) | 0.0142 (3) | |
C20 | 0.2835 (2) | 0.24569 (15) | 0.22615 (12) | 0.0193 (3) | |
H20 | 0.3378 | 0.1878 | 0.2621 | 0.023* | |
C15 | 0.4159 (2) | 0.28667 (15) | 0.51871 (11) | 0.0175 (3) | |
H15 | 0.4729 | 0.3685 | 0.5276 | 0.021* | |
C5 | 0.2903 (2) | 0.93506 (16) | 0.81632 (12) | 0.0219 (4) | |
H5 | 0.3817 | 0.8971 | 0.8408 | 0.026* | |
C1 | 0.13426 (19) | 0.66862 (14) | 0.44403 (11) | 0.0152 (3) | |
C16 | 0.4535 (2) | 0.18811 (15) | 0.57937 (11) | 0.0185 (3) | |
H16 | 0.5366 | 0.2026 | 0.6291 | 0.022* | |
C6 | 0.1830 (2) | 0.87492 (14) | 0.74368 (11) | 0.0158 (3) | |
C17 | 0.3646 (2) | 0.06836 (15) | 0.56384 (11) | 0.0183 (3) | |
H17 | 0.3867 | 0.0008 | 0.6033 | 0.022* | |
C9 | 0.2753 (2) | 0.64769 (16) | 0.85125 (12) | 0.0207 (3) | |
H9 | 0.2326 | 0.7102 | 0.8871 | 0.025* | |
C18 | 0.2421 (2) | 0.05004 (14) | 0.48887 (11) | 0.0174 (3) | |
H18 | 0.1821 | −0.0308 | 0.4794 | 0.021* | |
C7 | 0.20552 (19) | 0.75424 (14) | 0.69332 (11) | 0.0151 (3) | |
C12 | 0.3918 (2) | 0.46578 (17) | 0.74277 (13) | 0.0261 (4) | |
H12 | 0.4309 | 0.4025 | 0.7059 | 0.031* | |
C2 | 0.0211 (2) | 1.04672 (15) | 0.74398 (12) | 0.0208 (3) | |
H2 | −0.0712 | 1.0831 | 0.7189 | 0.025* | |
C23 | 0.1328 (2) | 0.42228 (16) | 0.12492 (12) | 0.0218 (4) | |
H23 | 0.0845 | 0.4838 | 0.0896 | 0.026* | |
C22 | 0.1824 (2) | 0.32125 (17) | 0.07416 (12) | 0.0245 (4) | |
H22 | 0.1634 | 0.3135 | 0.0066 | 0.029* | |
C10 | 0.3423 (2) | 0.54963 (16) | 0.89862 (12) | 0.0237 (4) | |
H10 | 0.3467 | 0.5465 | 0.9669 | 0.028* | |
C11 | 0.4023 (2) | 0.45699 (16) | 0.84425 (13) | 0.0254 (4) | |
H11 | 0.4485 | 0.3905 | 0.8745 | 0.030* | |
C21 | 0.2605 (2) | 0.23194 (16) | 0.12549 (12) | 0.0239 (4) | |
H21 | 0.2970 | 0.1639 | 0.0930 | 0.029* | |
C3 | 0.1261 (2) | 1.10889 (17) | 0.81633 (13) | 0.0276 (4) | |
H3 | 0.1061 | 1.1874 | 0.8401 | 0.033* | |
C4 | 0.2611 (2) | 1.05221 (18) | 0.85257 (13) | 0.0284 (4) | |
H4 | 0.3330 | 1.0925 | 0.9015 | 0.034* | |
B1 | 0.2959 (3) | 0.8076 (2) | 0.10945 (17) | 0.0306 (5) | |
F1 | 0.3407 (2) | 0.7618 (2) | 0.20065 (11) | 0.0788 (5) | |
F2 | 0.42071 (15) | 0.78336 (12) | 0.04479 (8) | 0.0381 (3) | |
F3 | 0.14286 (17) | 0.73994 (14) | 0.07990 (12) | 0.0618 (4) | |
F4 | 0.2908 (2) | 0.93300 (14) | 0.11734 (17) | 0.0898 (7) |
U11 | U22 | U33 | U12 | U13 | U23 | |
O1 | 0.0329 (7) | 0.0149 (6) | 0.0180 (6) | 0.0091 (5) | −0.0041 (5) | −0.0001 (4) |
N1 | 0.0181 (7) | 0.0144 (6) | 0.0127 (6) | 0.0024 (5) | −0.0015 (5) | −0.0014 (5) |
N2 | 0.0157 (6) | 0.0142 (6) | 0.0147 (6) | 0.0021 (5) | 0.0002 (5) | −0.0019 (5) |
N3 | 0.0194 (7) | 0.0118 (6) | 0.0135 (6) | 0.0049 (5) | −0.0013 (5) | −0.0010 (5) |
N4 | 0.0245 (7) | 0.0134 (6) | 0.0120 (6) | 0.0052 (5) | −0.0028 (5) | −0.0002 (5) |
N6 | 0.0194 (7) | 0.0182 (7) | 0.0157 (6) | 0.0022 (5) | −0.0008 (5) | −0.0007 (5) |
N7 | 0.0172 (6) | 0.0135 (6) | 0.0157 (6) | 0.0031 (5) | 0.0009 (5) | −0.0016 (5) |
N8 | 0.0269 (8) | 0.0194 (7) | 0.0181 (7) | 0.0082 (6) | −0.0022 (6) | −0.0005 (5) |
N5 | 0.0164 (6) | 0.0116 (6) | 0.0160 (6) | 0.0017 (5) | −0.0014 (5) | 0.0013 (5) |
C13 | 0.0139 (7) | 0.0139 (7) | 0.0147 (7) | 0.0008 (6) | −0.0005 (6) | −0.0006 (6) |
C8 | 0.0141 (7) | 0.0181 (8) | 0.0165 (7) | 0.0019 (6) | −0.0017 (6) | 0.0001 (6) |
C19 | 0.0150 (7) | 0.0151 (7) | 0.0147 (7) | −0.0008 (6) | 0.0006 (6) | −0.0001 (6) |
C14 | 0.0158 (7) | 0.0130 (7) | 0.0145 (7) | 0.0037 (6) | 0.0028 (6) | −0.0017 (5) |
C20 | 0.0224 (8) | 0.0177 (8) | 0.0180 (8) | 0.0028 (6) | 0.0036 (6) | 0.0002 (6) |
C15 | 0.0176 (8) | 0.0151 (7) | 0.0194 (8) | 0.0012 (6) | −0.0011 (6) | −0.0011 (6) |
C5 | 0.0204 (8) | 0.0261 (9) | 0.0191 (8) | 0.0040 (7) | −0.0034 (6) | −0.0050 (6) |
C1 | 0.0165 (7) | 0.0138 (7) | 0.0150 (7) | 0.0015 (6) | −0.0007 (6) | −0.0008 (6) |
C16 | 0.0180 (8) | 0.0226 (8) | 0.0158 (7) | 0.0058 (6) | −0.0024 (6) | −0.0003 (6) |
C6 | 0.0167 (7) | 0.0172 (7) | 0.0135 (7) | 0.0025 (6) | 0.0015 (6) | −0.0004 (6) |
C17 | 0.0205 (8) | 0.0181 (8) | 0.0175 (7) | 0.0064 (6) | 0.0025 (6) | 0.0050 (6) |
C9 | 0.0222 (8) | 0.0231 (8) | 0.0172 (8) | 0.0049 (7) | 0.0000 (6) | 0.0001 (6) |
C18 | 0.0199 (8) | 0.0130 (7) | 0.0196 (8) | 0.0028 (6) | 0.0027 (6) | −0.0007 (6) |
C7 | 0.0139 (7) | 0.0157 (7) | 0.0158 (7) | 0.0020 (6) | 0.0008 (6) | −0.0005 (6) |
C12 | 0.0361 (10) | 0.0214 (8) | 0.0229 (9) | 0.0128 (7) | −0.0034 (7) | −0.0009 (7) |
C2 | 0.0259 (9) | 0.0180 (8) | 0.0196 (8) | 0.0070 (6) | 0.0004 (7) | −0.0017 (6) |
C23 | 0.0246 (9) | 0.0244 (8) | 0.0159 (8) | 0.0025 (7) | −0.0027 (6) | 0.0009 (6) |
C22 | 0.0321 (10) | 0.0275 (9) | 0.0125 (8) | −0.0011 (7) | 0.0006 (7) | −0.0027 (6) |
C10 | 0.0281 (9) | 0.0266 (9) | 0.0158 (8) | 0.0020 (7) | −0.0031 (7) | 0.0044 (6) |
C11 | 0.0306 (9) | 0.0218 (8) | 0.0246 (9) | 0.0080 (7) | −0.0058 (7) | 0.0057 (7) |
C21 | 0.0310 (9) | 0.0212 (8) | 0.0195 (8) | 0.0024 (7) | 0.0068 (7) | −0.0050 (6) |
C3 | 0.0351 (10) | 0.0214 (9) | 0.0266 (9) | 0.0056 (7) | −0.0011 (8) | −0.0122 (7) |
C4 | 0.0287 (9) | 0.0302 (9) | 0.0252 (9) | 0.0013 (7) | −0.0055 (7) | −0.0130 (7) |
B1 | 0.0283 (11) | 0.0281 (11) | 0.0357 (12) | 0.0049 (9) | −0.0021 (9) | −0.0079 (9) |
F1 | 0.0849 (13) | 0.1169 (15) | 0.0361 (8) | 0.0202 (11) | −0.0023 (8) | 0.0033 (9) |
F2 | 0.0329 (6) | 0.0449 (7) | 0.0360 (6) | 0.0037 (5) | −0.0016 (5) | −0.0140 (5) |
F3 | 0.0313 (7) | 0.0607 (9) | 0.0918 (12) | 0.0014 (6) | −0.0033 (7) | −0.0231 (8) |
F4 | 0.0708 (12) | 0.0280 (8) | 0.174 (2) | 0.0124 (7) | 0.0381 (12) | −0.0134 (10) |
O1—C1 | 1.2157 (18) | C5—C4 | 1.389 (2) |
N1—C2 | 1.337 (2) | C5—H5 | 0.9300 |
N1—C6 | 1.357 (2) | C16—C17 | 1.381 (2) |
N1—H1 | 0.90 (2) | C16—H16 | 0.9300 |
N2—C7 | 1.301 (2) | C6—C7 | 1.488 (2) |
N2—N3 | 1.3481 (18) | C17—C18 | 1.385 (2) |
N3—C1 | 1.3820 (19) | C17—H17 | 0.9300 |
N3—H30 | 0.89 (2) | C9—C10 | 1.385 (2) |
N4—N5 | 1.3557 (17) | C9—H9 | 0.9300 |
N4—C1 | 1.378 (2) | C18—H18 | 0.9300 |
N4—H40 | 0.82 (2) | C12—C11 | 1.387 (2) |
N6—C23 | 1.339 (2) | C12—H12 | 0.9300 |
N6—C19 | 1.349 (2) | C2—C3 | 1.380 (2) |
N7—C18 | 1.3418 (19) | C2—H2 | 0.9300 |
N7—C14 | 1.343 (2) | C23—C22 | 1.383 (2) |
N8—C12 | 1.335 (2) | C23—H23 | 0.9300 |
N8—C8 | 1.353 (2) | C22—C21 | 1.383 (2) |
N5—C13 | 1.297 (2) | C22—H22 | 0.9300 |
C13—C19 | 1.489 (2) | C10—C11 | 1.374 (3) |
C13—C14 | 1.495 (2) | C10—H10 | 0.9300 |
C8—C9 | 1.396 (2) | C11—H11 | 0.9300 |
C8—C7 | 1.480 (2) | C21—H21 | 0.9300 |
C19—C20 | 1.399 (2) | C3—C4 | 1.378 (3) |
C14—C15 | 1.392 (2) | C3—H3 | 0.9300 |
C20—C21 | 1.384 (2) | C4—H4 | 0.9300 |
C20—H20 | 0.9300 | B1—F4 | 1.342 (3) |
C15—C16 | 1.393 (2) | B1—F3 | 1.373 (3) |
C15—H15 | 0.9300 | B1—F1 | 1.390 (3) |
C5—C6 | 1.384 (2) | B1—F2 | 1.391 (3) |
C2—N1—C6 | 123.20 (14) | C16—C17—H17 | 120.4 |
C2—N1—H1 | 117.6 (14) | C18—C17—H17 | 120.4 |
C6—N1—H1 | 119.2 (14) | C10—C9—C8 | 118.98 (15) |
C7—N2—N3 | 120.02 (13) | C10—C9—H9 | 120.5 |
N2—N3—C1 | 116.77 (13) | C8—C9—H9 | 120.5 |
N2—N3—H30 | 120.6 (15) | N7—C18—C17 | 122.81 (14) |
C1—N3—H30 | 121.9 (15) | N7—C18—H18 | 118.6 |
N5—N4—C1 | 119.28 (13) | C17—C18—H18 | 118.6 |
N5—N4—H40 | 121.7 (16) | N2—C7—C8 | 128.54 (14) |
C1—N4—H40 | 118.4 (16) | N2—C7—C6 | 111.30 (13) |
C23—N6—C19 | 118.19 (14) | C8—C7—C6 | 120.15 (13) |
C18—N7—C14 | 118.10 (13) | N8—C12—C11 | 124.13 (16) |
C12—N8—C8 | 117.68 (14) | N8—C12—H12 | 117.9 |
C13—N5—N4 | 120.72 (13) | C11—C12—H12 | 117.9 |
N5—C13—C19 | 127.73 (14) | N1—C2—C3 | 120.10 (16) |
N5—C13—C14 | 112.55 (13) | N1—C2—H2 | 119.9 |
C19—C13—C14 | 119.72 (13) | C3—C2—H2 | 119.9 |
N8—C8—C9 | 121.70 (14) | N6—C23—C22 | 123.18 (16) |
N8—C8—C7 | 116.38 (13) | N6—C23—H23 | 118.4 |
C9—C8—C7 | 121.90 (14) | C22—C23—H23 | 118.4 |
N6—C19—C20 | 121.65 (14) | C21—C22—C23 | 118.89 (15) |
N6—C19—C13 | 116.70 (13) | C21—C22—H22 | 120.6 |
C20—C19—C13 | 121.63 (14) | C23—C22—H22 | 120.6 |
N7—C14—C15 | 122.42 (14) | C11—C10—C9 | 119.63 (15) |
N7—C14—C13 | 117.28 (13) | C11—C10—H10 | 120.2 |
C15—C14—C13 | 120.22 (13) | C9—C10—H10 | 120.2 |
C21—C20—C19 | 119.31 (15) | C10—C11—C12 | 117.84 (15) |
C21—C20—H20 | 120.3 | C10—C11—H11 | 121.1 |
C19—C20—H20 | 120.3 | C12—C11—H11 | 121.1 |
C14—C15—C16 | 118.96 (14) | C22—C21—C20 | 118.71 (15) |
C14—C15—H15 | 120.5 | C22—C21—H21 | 120.6 |
C16—C15—H15 | 120.5 | C20—C21—H21 | 120.6 |
C6—C5—C4 | 119.88 (16) | C4—C3—C2 | 118.64 (16) |
C6—C5—H5 | 120.1 | C4—C3—H3 | 120.7 |
C4—C5—H5 | 120.1 | C2—C3—H3 | 120.7 |
O1—C1—N4 | 121.74 (14) | C3—C4—C5 | 120.25 (16) |
O1—C1—N3 | 124.77 (14) | C3—C4—H4 | 119.9 |
N4—C1—N3 | 113.48 (13) | C5—C4—H4 | 119.9 |
C17—C16—C15 | 118.44 (14) | F4—B1—F3 | 113.43 (19) |
C17—C16—H16 | 120.8 | F4—B1—F1 | 108.7 (2) |
C15—C16—H16 | 120.8 | F3—B1—F1 | 107.76 (19) |
N1—C6—C5 | 117.93 (14) | F4—B1—F2 | 110.79 (19) |
N1—C6—C7 | 116.20 (13) | F3—B1—F2 | 108.98 (17) |
C5—C6—C7 | 125.70 (14) | F1—B1—F2 | 106.95 (17) |
C16—C17—C18 | 119.25 (14) |
D—H···A | D—H | H···A | D···A | D—H···A |
N1—H1···N7i | 0.90 (2) | 1.92 (2) | 2.792 (2) | 163.5 (15) |
N3—H30···N8 | 0.88 (2) | 1.99 (2) | 2.658 (2) | 132.1 (19) |
N4—H40···N6 | 0.83 (2) | 2.02 (2) | 2.640 (2) | 132 (2) |
C2—H2···O1ii | 0.93 | 2.41 | 3.083 (2) | 129 (1) |
C18—H18···O1iii | 0.93 | 2.46 | 3.355 (2) | 162 (1) |
Symmetry codes: (i) −x, −y+1, −z+1; (ii) −x, −y+2, −z+1; (iii) x, y−1, z. |
Experimental details
Crystal data | |
Chemical formula | C23H19N8O+·BF4− |
Mr | 510.27 |
Crystal system, space group | Triclinic, P1 |
Temperature (K) | 123 |
a, b, c (Å) | 7.9187 (16), 10.626 (2), 13.623 (3) |
α, β, γ (°) | 90.03 (3), 91.50 (3), 97.85 (3) |
V (Å3) | 1135.1 (4) |
Z | 2 |
Radiation type | Mo Kα |
µ (mm−1) | 0.12 |
Crystal size (mm) | 0.22 × 0.19 × 0.16 |
Data collection | |
Diffractometer | Bruker APEXII CCD area-detector diffractometer |
Absorption correction | Multi-scan (SADABS; Sheldrick, 2003) |
Tmin, Tmax | 0.974, 0.981 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 18299, 5175, 4025 |
Rint | 0.032 |
(sin θ/λ)max (Å−1) | 0.649 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.048, 0.151, 0.98 |
No. of reflections | 5175 |
No. of parameters | 346 |
H-atom treatment | H atoms treated by a mixture of independent and constrained refinement |
Δρmax, Δρmin (e Å−3) | 0.68, −0.49 |
Computer programs: APEX2 (Bruker, 2004), SAINT-Plus (Bruker, 2001), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), XP in SHELXTL (Sheldrick, 2008).
D—H···A | D—H | H···A | D···A | D—H···A |
N1—H1···N7i | 0.90 (2) | 1.92 (2) | 2.792 (2) | 163.5 (15) |
N3—H30···N8 | 0.88 (2) | 1.99 (2) | 2.658 (2) | 132.1 (19) |
N4—H40···N6 | 0.83 (2) | 2.02 (2) | 2.640 (2) | 132 (2) |
C2—H2···O1ii | 0.930 | 2.411 | 3.083 (2) | 129.11 (15) |
C18—H18···O1iii | 0.930 | 2.458 | 3.355 (2) | 161.92 (15) |
Symmetry codes: (i) −x, −y+1, −z+1; (ii) −x, −y+2, −z+1; (iii) x, y−1, z. |
Acknowledgements
This work was supported by supported by the Fundamental Research Funds for the Central Universities (China University of Mining and Technology, No. 2011QNA08).
References
Bruker (2001). SAINT-Plus. Bruker AXS Inc., Madison,Wisconsin, USA. Google Scholar
Bruker (2004). APEX2. Bruker AXS Inc., Madison, Wisconsin, USA. Google Scholar
Manoj, E., Prathapachandra Kurup, M. R., Fun, H.-K. & Chantrapromma, S. (2005). Acta Cryst. E61, o4110–o4112. Web of Science CSD CrossRef IUCr Journals Google Scholar
Sheldrick, G. M. (2003). SADABS. University of Göttingen, Germany. Google Scholar
Sheldrick, G. M. (2008). Acta Cryst. A64, 112–122. Web of Science CrossRef CAS IUCr Journals Google Scholar
Wu, D.-Y., Sato, O., Einaga, Y. & Duan, C.-Y. (2009). Angew. Chem. Int. Ed. 48, 1475–1478. Web of Science CSD CrossRef CAS Google Scholar
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Recently, the ligand 1,3-bis(bis(2-pyridyl)methylene)amino)urea and its derivatives have been employed to assembly clusters with novel topological structures and interesting magnetic and photomagnetic properties (Wu et al., 2009). In our attempt to synthesize a tetranuclear square iron cluster based on the ligand 1,3-bis(bis(2-pyridyl)methylene)amino)urea and FeII(BF4)2.4H2O, the title compound was obtained unexpectedly. Herein, we report the crystal structure of 1,3-bis(bis(2-pyridyl)methylene)amino)urea tetrafluoroborate (I).
The geometry and labeling scheme for the crystal structure of the title complex are depicted in Figure 1. The molecular structure comprises a [C23H19N8O]+ cation and a charge balancing anion [BF4]-. In the molecular structure, one pyridine nitrogen was protonated by one hydrogen. The cation adopts an EE configuration about the hydrazine bonds which is similar to its precursor 1,3-bis(bis(2-pyridyl)methylene)amino)urea (Manoj et al., 2005).
The C—O bond length is 1.2157 (18) Å. The C—Nhydrazine double bond lengths are 1.297 (2) and 1.301 (2) Å, respectively. There are two intramolecular N—H···N hydrogen bonds. A relatively strong intermolecular N—H···N hydrogen bond links two neighboring [C23H19N8O]+ units into a cyclic supramolecular dimer. In addition, C—H···O hydrogen bonds link the [C23H19N8O]+ units into a two-dimensional supramolecular network structure as shown in Figure 2.