Literature DB >> 21587397

7-(1,3-Dioxolan-2-ylmethyl)-1,3-di-methyl-2,6-dioxo-2,3,6,7-tetra-hydro-1H-purin-9-ium tetra-chloridoferrate(III).

Ping Ping Wang, Jiang Gong, Shi-Feng Ni.   

Abstract

The asymmetric unit of the title compound, (C(11)H(15)N(4)O(4))[FeCl(4)], contains two independent protonated 7-(1,3-dioxolan-2-ylmeth-yl)-3,7-dihydro-1,3-dimethyl-1H-purine-2,6-dione (doxofyllinium) and two tetrahedral tetra-chlorido-ferrate(III) anions. In the doxofyllinium, two disordered methyl-ene C atoms are observed in each dioxolane ring with an occupancy ratio of 0.54 (4):0.46 (4). In the crystal, mol-ecules are connected by N-H⋯O hydrogen bonds and weak C-H⋯O and C-H⋯Cl inter-actions.

Entities:  

Year:  2010        PMID: 21587397      PMCID: PMC2983145          DOI: 10.1107/S1600536810034720

Source DB:  PubMed          Journal:  Acta Crystallogr Sect E Struct Rep Online        ISSN: 1600-5368


Related literature

For the biological activity of the drug doxofylline, see: Franzone et al. (1981 ▶, 1989 ▶); Zhao & Li (2001 ▶). For bond distances and angles in other tetra­chlorido­ferrate(III) compounds, see: Barbaro et al. (1992 ▶); Bottomley et al. (1984 ▶). For the synthesis of doxofylline, see: Li et al. (1995 ▶).

Experimental

Crystal data

(C11H15N4O4)[FeCl4] M = 464.92 Tetragonal, a = 20.2947 (4) Å c = 9.0692 (4) Å V = 3735.38 (19) Å3 Z = 8 Mo Kα radiation μ = 1.40 mm−1 T = 293 K 0.27 × 0.16 × 0.13 mm

Data collection

Bruker SMART APEX area-detector diffractometer Absorption correction: multi-scan (SADABS; Bruker, 2000 ▶) T min = 0.775, T max = 0.852 19874 measured reflections 6253 independent reflections 5589 reflections with I > 2σ(I) R int = 0.046

Refinement

R[F 2 > 2σ(F 2)] = 0.099 wR(F 2) = 0.207 S = 1.30 6253 reflections 447 parameters 13 restraints H-atom parameters constrained Δρmax = 0.49 e Å−3 Δρmin = −0.31 e Å−3 Absolute structure: Flack (1983 ▶), 2724 Friedel pairs Flack parameter: 0.10 (4) Data collection: SMART (Bruker, 2000 ▶); cell refinement: SAINT (Bruker, 2000 ▶); data reduction: SAINT; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008 ▶); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008 ▶); molecular graphics: SHELXTL (Sheldrick, 2008 ▶); software used to prepare material for publication: SHELXL97. Crystal structure: contains datablocks global, I. DOI: 10.1107/S1600536810034720/jh2188sup1.cif Structure factors: contains datablocks I. DOI: 10.1107/S1600536810034720/jh2188Isup2.hkl Additional supplementary materials: crystallographic information; 3D view; checkCIF report
(C11H15N4O4)[FeCl4]Dx = 1.653 Mg m3
Mr = 464.92Mo Kα radiation, λ = 0.71073 Å
Tetragonal, P42Cell parameters from 8917 reflections
Hall symbol: P 4cθ = 2.2–26.5°
a = 20.2947 (4) ŵ = 1.40 mm1
c = 9.0692 (4) ÅT = 293 K
V = 3735.38 (19) Å3Block, colourless
Z = 80.27 × 0.16 × 0.13 mm
F(000) = 1880.0
Bruker SMART APEX area-detector diffractometer6253 independent reflections
Radiation source: fine-focus sealed tube5589 reflections with I > 2σ(I)
graphiteRint = 0.046
φ and ω scanθmax = 25.0°, θmin = 1.0°
Absorption correction: multi-scan (SADABS; Bruker, 2000)h = −24→23
Tmin = 0.775, Tmax = 0.852k = −24→23
19874 measured reflectionsl = −9→10
Refinement on F2Secondary atom site location: difference Fourier map
Least-squares matrix: fullHydrogen site location: inferred from neighbouring sites
R[F2 > 2σ(F2)] = 0.099H-atom parameters constrained
wR(F2) = 0.207w = 1/[σ2(Fo2) + (0.0665P)2 + 7.3566P] where P = (Fo2 + 2Fc2)/3
S = 1.30(Δ/σ)max < 0.001
6253 reflectionsΔρmax = 0.49 e Å3
447 parametersΔρmin = −0.31 e Å3
13 restraintsAbsolute structure: Flack (1983), 2724 Friedel pairs
Primary atom site location: structure-invariant direct methodsFlack parameter: 0.10 (4)
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.
xyzUiso*/UeqOcc. (<1)
Fe10.68089 (8)0.33071 (7)0.16159 (18)0.0569 (4)
Fe20.16760 (8)0.17898 (7)0.22058 (17)0.0586 (4)
Cl10.69861 (18)0.24505 (16)0.2998 (4)0.0869 (10)
Cl20.59364 (17)0.3131 (2)0.0264 (4)0.0898 (11)
Cl30.76550 (17)0.35346 (18)0.0238 (4)0.0913 (11)
Cl40.6604 (2)0.41656 (17)0.3005 (4)0.0913 (11)
Cl50.17996 (16)0.25893 (15)0.3795 (4)0.0735 (9)
Cl60.1499 (2)0.08671 (15)0.3379 (4)0.0886 (10)
Cl70.08268 (18)0.20197 (19)0.0809 (5)0.0966 (11)
Cl80.25566 (19)0.1697 (2)0.0873 (5)0.1016 (12)
O10.5196 (4)0.1673 (3)0.2934 (8)0.0592 (19)
O20.4364 (3)0.3755 (3)0.2618 (9)0.063 (2)
O30.4982 (4)0.1135 (4)0.6244 (10)0.086 (3)
O40.5648 (4)0.1321 (4)0.8177 (8)0.072 (2)
O50.3355 (3)0.0243 (4)−0.1686 (8)0.0587 (19)
O60.1189 (4)0.0815 (4)−0.2061 (9)0.068 (2)
O70.3705 (4)−0.0319 (3)0.3520 (8)0.063 (2)
O80.3889 (4)0.0414 (4)0.1734 (9)0.073 (2)
N10.4750 (4)0.2704 (4)0.2853 (9)0.0448 (19)
N20.5058 (4)0.3546 (3)0.4494 (9)0.044 (2)
N30.5913 (3)0.2156 (3)0.5737 (8)0.0370 (16)
N40.5845 (4)0.3180 (4)0.6382 (9)0.0450 (19)
H40.59070.35390.68650.054*
N50.2260 (4)0.0565 (4)−0.1796 (9)0.0464 (19)
N60.1468 (4)0.0128 (4)−0.0221 (10)0.047 (2)
N70.2938 (3)−0.0580 (3)0.1018 (8)0.0343 (16)
N80.1903 (4)−0.0635 (3)0.1613 (9)0.0452 (19)
H80.1551−0.07440.20810.054*
C10.5154 (4)0.2206 (4)0.3469 (11)0.040 (2)
C20.4696 (4)0.3359 (5)0.3274 (12)0.046 (2)
C30.5443 (4)0.3099 (3)0.5178 (10)0.0317 (19)
C40.5473 (4)0.2455 (4)0.4781 (10)0.039 (2)
C50.6115 (4)0.2604 (4)0.6661 (11)0.040 (2)
H50.64130.25260.74200.048*
C60.4343 (6)0.2508 (6)0.1589 (13)0.068 (3)
H6A0.44140.20500.13800.103*
H6B0.44630.27660.07440.103*
H6C0.38870.25810.18170.103*
C70.5043 (5)0.4240 (5)0.4975 (16)0.068 (3)
H7A0.47430.44830.43640.102*
H7B0.54760.44260.48940.102*
H7C0.48990.42620.59830.102*
C80.6086 (5)0.1450 (4)0.5793 (11)0.049 (2)
H8A0.65300.14010.61760.059*
H8B0.60770.12680.48050.059*
C90.5614 (6)0.1078 (5)0.6754 (12)0.060 (3)
H90.57390.06110.67620.072*
C100.4622 (13)0.1031 (15)0.7592 (18)0.068 (8)0.46 (4)
H10A0.46590.05800.79390.081*0.46 (4)
H10B0.41600.11470.74880.081*0.46 (4)
C110.4989 (6)0.1514 (14)0.859 (3)0.068 (8)0.46 (4)
H11A0.48950.19690.83450.081*0.46 (4)
H11B0.49010.14360.96270.081*0.46 (4)
C10'0.4559 (11)0.1331 (16)0.7455 (19)0.094 (10)0.54 (4)
H10C0.41570.10720.74790.113*0.54 (4)
H10D0.44480.17950.74010.113*0.54 (4)
C11'0.4999 (7)0.1183 (18)0.878 (3)0.094 (10)0.54 (4)
H11C0.48980.14690.96090.113*0.54 (4)
H11D0.49600.07270.90910.113*0.54 (4)
C120.2815 (5)0.0217 (4)−0.1225 (11)0.043 (2)
C130.1621 (4)0.0531 (4)−0.1418 (12)0.044 (2)
C140.1953 (4)−0.0211 (3)0.0451 (10)0.0309 (19)
C150.2591 (4)−0.0156 (4)0.0084 (10)0.035 (2)
C160.2515 (5)−0.0846 (4)0.1871 (11)0.042 (2)
H160.2622−0.11530.25930.050*
C170.2421 (6)0.1030 (6)−0.3009 (13)0.080 (4)
H17A0.28870.1019−0.31960.119*
H17B0.22940.1468−0.27310.119*
H17C0.21880.0902−0.38850.119*
C180.0772 (5)0.0074 (6)0.0225 (16)0.071 (4)
H18A0.05070.0353−0.03890.107*
H18B0.07260.02070.12350.107*
H18C0.0629−0.03750.01190.107*
C190.3647 (4)−0.0690 (5)0.1035 (11)0.045 (2)
H19A0.3825−0.06100.00580.054*
H19B0.3736−0.11450.12920.054*
C200.3981 (4)−0.0246 (5)0.2117 (13)0.054 (3)
H200.4453−0.03470.21530.065*
C220.367 (2)0.0769 (14)0.303 (2)0.065 (11)0.36 (4)
H22A0.32070.08630.29880.078*0.36 (4)
H22B0.39150.11790.31410.078*0.36 (4)
C210.383 (3)0.0292 (8)0.429 (3)0.065 (11)0.36 (4)
H21A0.42890.03270.46060.078*0.36 (4)
H21B0.35430.03530.51270.078*0.36 (4)
C22'0.3901 (12)0.0742 (11)0.3145 (17)0.078 (7)0.64 (4)
H22C0.37180.11830.30760.094*0.64 (4)
H22D0.43460.07690.35300.094*0.64 (4)
C21'0.3470 (14)0.0299 (6)0.411 (3)0.078 (7)0.64 (4)
H21C0.35660.03480.51500.094*0.64 (4)
H21D0.30040.03650.39310.094*0.64 (4)
U11U22U33U12U13U23
Fe10.0695 (10)0.0601 (10)0.0411 (9)−0.0070 (8)0.0035 (8)0.0009 (8)
Fe20.0745 (11)0.0581 (10)0.0432 (9)0.0120 (8)0.0031 (8)0.0023 (8)
Cl10.105 (2)0.078 (2)0.078 (2)0.0085 (18)0.021 (2)0.0265 (19)
Cl20.089 (2)0.126 (3)0.055 (2)−0.026 (2)−0.0054 (17)−0.0144 (19)
Cl30.083 (2)0.096 (2)0.095 (3)−0.0082 (18)0.027 (2)0.032 (2)
Cl40.128 (3)0.082 (2)0.064 (2)0.003 (2)−0.008 (2)−0.0211 (18)
Cl50.087 (2)0.0716 (18)0.0619 (19)−0.0058 (16)0.0210 (17)−0.0146 (15)
Cl60.136 (3)0.0681 (19)0.061 (2)0.0021 (19)−0.004 (2)0.0153 (16)
Cl70.101 (3)0.108 (3)0.081 (2)0.023 (2)−0.027 (2)0.010 (2)
Cl80.102 (3)0.129 (3)0.073 (2)0.011 (2)0.027 (2)−0.018 (2)
O10.090 (5)0.040 (4)0.047 (4)−0.004 (3)−0.018 (4)−0.019 (3)
O20.045 (4)0.064 (4)0.079 (6)0.019 (3)−0.012 (4)0.022 (4)
O30.093 (6)0.087 (6)0.078 (7)−0.033 (5)−0.019 (5)0.002 (5)
O40.086 (5)0.093 (6)0.036 (4)0.012 (4)−0.006 (4)0.013 (4)
O50.035 (4)0.097 (5)0.044 (4)−0.002 (3)0.015 (3)0.027 (4)
O60.065 (5)0.068 (5)0.071 (6)0.020 (4)−0.016 (4)0.017 (4)
O70.098 (6)0.055 (4)0.034 (4)−0.003 (4)−0.015 (4)0.011 (3)
O80.081 (5)0.066 (5)0.073 (6)−0.024 (4)0.002 (5)0.009 (4)
N10.049 (4)0.055 (5)0.031 (4)−0.003 (4)−0.008 (4)0.005 (4)
N20.050 (5)0.024 (4)0.056 (6)0.008 (3)−0.005 (4)0.010 (3)
N30.048 (4)0.041 (4)0.022 (4)0.009 (3)−0.005 (3)0.004 (3)
N40.061 (5)0.036 (4)0.038 (5)0.003 (3)−0.021 (4)−0.014 (3)
N50.061 (5)0.047 (4)0.032 (4)0.010 (4)−0.010 (4)0.009 (4)
N60.035 (4)0.050 (5)0.056 (5)0.005 (3)0.005 (4)0.015 (4)
N70.037 (4)0.039 (4)0.027 (4)0.003 (3)0.002 (3)0.012 (3)
N80.040 (4)0.046 (4)0.049 (5)−0.010 (3)0.013 (4)0.000 (4)
C10.033 (5)0.047 (5)0.040 (6)−0.003 (4)0.004 (4)0.010 (5)
C20.033 (5)0.060 (6)0.044 (6)0.005 (4)−0.009 (4)0.014 (5)
C30.047 (5)0.015 (4)0.033 (5)−0.012 (3)0.009 (4)−0.004 (3)
C40.038 (5)0.052 (6)0.026 (5)−0.007 (4)0.002 (4)0.007 (4)
C50.052 (5)0.035 (5)0.033 (5)0.004 (4)−0.022 (4)0.004 (4)
C60.088 (8)0.071 (7)0.046 (7)0.008 (6)−0.020 (6)−0.001 (6)
C70.060 (7)0.044 (6)0.101 (10)0.008 (5)−0.027 (7)0.001 (6)
C80.065 (6)0.052 (6)0.030 (5)0.018 (5)−0.010 (5)0.003 (4)
C90.096 (9)0.045 (6)0.039 (6)0.006 (5)−0.021 (6)0.010 (5)
C100.057 (13)0.060 (14)0.085 (17)0.011 (9)−0.009 (10)0.043 (12)
C110.057 (13)0.060 (14)0.085 (17)0.011 (9)−0.009 (10)0.043 (12)
C10'0.083 (15)0.061 (16)0.14 (2)0.025 (11)0.014 (14)0.054 (14)
C11'0.083 (15)0.061 (16)0.14 (2)0.025 (11)0.014 (14)0.054 (14)
C120.053 (6)0.035 (5)0.041 (6)−0.004 (4)−0.007 (5)0.005 (4)
C130.026 (4)0.046 (5)0.060 (7)0.017 (4)−0.014 (5)−0.009 (5)
C140.037 (5)0.019 (4)0.037 (5)−0.008 (3)0.006 (4)0.007 (3)
C150.048 (5)0.025 (4)0.032 (5)0.003 (4)0.002 (4)0.002 (4)
C160.061 (6)0.021 (4)0.043 (6)0.007 (4)−0.008 (5)0.018 (4)
C170.096 (9)0.094 (9)0.049 (8)0.012 (7)0.012 (7)0.020 (7)
C180.038 (6)0.072 (7)0.103 (10)0.003 (5)0.003 (6)0.015 (7)
C190.035 (5)0.057 (6)0.042 (6)0.019 (4)−0.008 (4)0.007 (5)
C200.034 (5)0.059 (6)0.069 (8)0.011 (4)0.003 (5)0.015 (6)
C220.06 (2)0.051 (16)0.08 (2)−0.008 (12)0.016 (14)0.002 (14)
C210.06 (2)0.051 (16)0.08 (2)−0.008 (12)0.016 (14)0.002 (14)
C22'0.063 (12)0.064 (11)0.108 (15)−0.001 (7)−0.001 (9)−0.009 (10)
C21'0.063 (12)0.064 (11)0.108 (15)−0.001 (7)−0.001 (9)−0.009 (10)
Fe1—Cl12.173 (3)N8—H80.8600
Fe1—Cl32.173 (3)C1—C41.446 (13)
Fe1—Cl22.183 (4)C3—C41.357 (12)
Fe1—Cl42.190 (4)C5—H50.9300
Fe2—Cl82.165 (4)C6—H6A0.9600
Fe2—Cl62.183 (3)C6—H6B0.9600
Fe2—Cl52.185 (3)C6—H6C0.9600
Fe2—Cl72.189 (4)C7—H7A0.9600
O1—C11.189 (10)C7—H7B0.9600
O2—C21.206 (11)C7—H7C0.9600
O3—C91.368 (13)C8—C91.499 (14)
O3—C101.441 (10)C8—H8A0.9700
O3—C10'1.450 (10)C8—H8B0.9700
O4—C91.383 (13)C9—H90.9800
O4—C111.442 (10)C10—C111.528 (10)
O4—C11'1.454 (10)C10—H10A0.9700
O5—C121.173 (10)C10—H10B0.9700
O6—C131.201 (10)C11—H11A0.9700
O7—C201.398 (13)C11—H11B0.9700
O7—C21'1.444 (9)C10'—C11'1.529 (10)
O7—C211.447 (10)C10'—H10C0.9700
O8—C201.396 (12)C10'—H10D0.9700
O8—C22'1.443 (10)C11'—H11C0.9700
O8—C221.446 (10)C11'—H11D0.9700
N1—C21.386 (12)C12—C151.479 (12)
N1—C11.417 (11)C14—C151.342 (11)
N1—C61.467 (13)C16—H160.9300
N2—C31.349 (11)C17—H17A0.9600
N2—C21.382 (12)C17—H17B0.9600
N2—C71.473 (12)C17—H17C0.9600
N3—C51.302 (11)C18—H18A0.9600
N3—C41.384 (11)C18—H18B0.9600
N3—C81.477 (11)C18—H18C0.9600
N4—C51.316 (10)C19—C201.494 (14)
N4—C31.372 (11)C19—H19A0.9700
N4—H40.8600C19—H19B0.9700
N5—C131.344 (11)C20—H200.9800
N5—C121.427 (11)C22—C211.530 (10)
N5—C171.486 (13)C22—H22A0.9700
N6—C141.346 (11)C22—H22B0.9700
N6—C131.394 (13)C21—H21A0.9700
N6—C181.473 (12)C21—H21B0.9700
N7—C161.274 (11)C22'—C21'1.528 (10)
N7—C151.399 (10)C22'—H22C0.9700
N7—C191.456 (10)C22'—H22D0.9700
N8—C161.335 (11)C21'—H21C0.9700
N8—C141.365 (11)C21'—H21D0.9700
Cl1—Fe1—Cl3111.77 (15)O3—C10—C1199.2 (16)
Cl1—Fe1—Cl2109.10 (16)O3—C10—H10A111.9
Cl3—Fe1—Cl2110.66 (17)C11—C10—H10A111.9
Cl1—Fe1—Cl4109.65 (16)O3—C10—H10B111.9
Cl3—Fe1—Cl4108.16 (16)C11—C10—H10B111.9
Cl2—Fe1—Cl4107.41 (16)H10A—C10—H10B109.6
Cl8—Fe2—Cl6109.43 (17)O4—C11—C1097.2 (16)
Cl8—Fe2—Cl5109.77 (15)O4—C11—H11A112.3
Cl6—Fe2—Cl5109.54 (15)C10—C11—H11A112.3
Cl8—Fe2—Cl7110.21 (18)O4—C11—H11B112.3
Cl6—Fe2—Cl7109.58 (17)C10—C11—H11B112.3
Cl5—Fe2—Cl7108.28 (15)H11A—C11—H11B109.9
C9—O3—C10100.2 (14)O3—C10'—C11'101.4 (17)
C9—O3—C10'108.8 (12)O3—C10'—H10C111.5
C10—O3—C10'25.3 (10)C11'—C10'—H10C111.5
C9—O4—C11107.1 (13)O3—C10'—H10D111.5
C9—O4—C11'103.8 (15)C11'—C10'—H10D111.5
C11—O4—C11'27.7 (10)H10C—C10'—H10D109.3
C20—O7—C21'112.1 (10)O4—C11'—C10'101.1 (15)
C20—O7—C21106.0 (16)O4—C11'—H11C111.6
C21'—O7—C2130.3 (14)C10'—C11'—H11C111.6
C20—O8—C22'102.7 (12)O4—C11'—H11D111.6
C20—O8—C22108.4 (14)C10'—C11'—H11D111.6
C22'—O8—C2218.9 (19)H11C—C11'—H11D109.4
C2—N1—C1128.4 (8)O5—C12—N5125.8 (9)
C2—N1—C6115.5 (8)O5—C12—C15126.6 (8)
C1—N1—C6116.1 (8)N5—C12—C15107.5 (8)
C3—N2—C2119.4 (7)O6—C13—N5123.8 (10)
C3—N2—C7121.2 (8)O6—C13—N6119.9 (8)
C2—N2—C7119.3 (8)N5—C13—N6116.3 (7)
C5—N3—C4107.5 (7)C15—C14—N6123.4 (7)
C5—N3—C8125.4 (7)C15—C14—N8108.4 (7)
C4—N3—C8126.9 (7)N6—C14—N8128.2 (7)
C5—N4—C3107.2 (7)C14—C15—N7106.5 (7)
C5—N4—H4126.4C14—C15—C12122.6 (8)
C3—N4—H4126.4N7—C15—C12130.2 (8)
C13—N5—C12130.1 (8)N7—C16—N8112.6 (8)
C13—N5—C17115.8 (8)N7—C16—H16123.7
C12—N5—C17114.1 (8)N8—C16—H16123.7
C14—N6—C13119.3 (7)N5—C17—H17A109.5
C14—N6—C18122.5 (8)N5—C17—H17B109.5
C13—N6—C18118.1 (8)H17A—C17—H17B109.5
C16—N7—C15106.8 (7)N5—C17—H17C109.5
C16—N7—C19126.5 (7)H17A—C17—H17C109.5
C15—N7—C19126.7 (7)H17B—C17—H17C109.5
C16—N8—C14105.6 (7)N6—C18—H18A109.5
C16—N8—H8127.2N6—C18—H18B109.5
C14—N8—H8127.2H18A—C18—H18B109.5
O1—C1—N1122.0 (9)N6—C18—H18C109.5
O1—C1—C4128.4 (9)H18A—C18—H18C109.5
N1—C1—C4109.5 (8)H18B—C18—H18C109.5
O2—C2—N2120.6 (9)N7—C19—C20111.3 (8)
O2—C2—N1123.2 (9)N7—C19—H19A109.4
N2—C2—N1116.2 (8)C20—C19—H19A109.4
N2—C3—C4123.5 (8)N7—C19—H19B109.4
N2—C3—N4129.1 (7)C20—C19—H19B109.4
C4—C3—N4107.4 (7)H19A—C19—H19B108.0
C3—C4—N3106.5 (8)O8—C20—O7105.9 (8)
C3—C4—C1122.3 (8)O8—C20—C19110.7 (9)
N3—C4—C1130.6 (8)O7—C20—C19110.6 (8)
N3—C5—N4111.3 (8)O8—C20—H20109.8
N3—C5—H5124.3O7—C20—H20109.8
N4—C5—H5124.3C19—C20—H20109.8
N1—C6—H6A109.5O8—C22—C21103.2 (18)
N1—C6—H6B109.5O8—C22—H22A111.1
H6A—C6—H6B109.5C21—C22—H22A111.1
N1—C6—H6C109.5O8—C22—H22B111.1
H6A—C6—H6C109.5C21—C22—H22B111.1
H6B—C6—H6C109.5H22A—C22—H22B109.1
N2—C7—H7A109.5O7—C21—C2298.3 (18)
N2—C7—H7B109.5O7—C21—H21A112.1
H7A—C7—H7B109.5C22—C21—H21A112.1
N2—C7—H7C109.5O7—C21—H21B112.1
H7A—C7—H7C109.5C22—C21—H21B112.1
H7B—C7—H7C109.5H21A—C21—H21B109.7
N3—C8—C9110.9 (8)O8—C22'—C21'103.0 (13)
N3—C8—H8A109.5O8—C22'—H22C111.2
C9—C8—H8A109.5C21'—C22'—H22C111.2
N3—C8—H8B109.5O8—C22'—H22D111.2
C9—C8—H8B109.5C21'—C22'—H22D111.2
H8A—C8—H8B108.0H22C—C22'—H22D109.1
O3—C9—O4109.3 (10)O7—C21'—C22'96.4 (14)
O3—C9—C8111.1 (8)O7—C21'—H21C112.5
O4—C9—C8109.3 (9)C22'—C21'—H21C112.5
O3—C9—H9109.0O7—C21'—H21D112.5
O4—C9—H9109.0C22'—C21'—H21D112.5
C8—C9—H9109.0H21C—C21'—H21D110.0
D—H···AD—HH···AD···AD—H···A
N4—H4···O2i0.861.932.774 (9)165
N8—H8···O6ii0.861.912.754 (9)166
C5—H5···Cl5i0.932.803.650 (11)153
C8—H8B···O7iii0.972.293.114 (11)142
C10—H10C···O5iv0.952.463.098 (11)124
C10'—H10B···O5iv0.892.573.384 (11)153
C10'—H10C···O5iv0.972.463.384 (11)159
C16—H16···Cl1iii0.932.783.560 (11)143
C19—H19A···O4v0.972.483.227 (11)134
C19—H19A···O50.972.533.167 (11)123
C22'—H22D···O10.972.583.242 (11)126
Table 1

Hydrogen-bond geometry (Å, °)

D—H⋯AD—HH⋯ADAD—H⋯A
N4—H4⋯O2i0.861.932.774 (9)165
N8—H8⋯O6ii0.861.912.754 (9)166
C5—H5⋯Cl5i0.932.803.650 (11)153
C8—H8B⋯O7iii0.972.293.114 (11)142
C10—H10C⋯O5iv0.952.463.098 (11)124
C10′—H10B⋯O5iv0.892.573.384 (11)153
C10′—H10C⋯O5iv0.972.463.384 (11)159
C16—H16⋯Cl1iii0.932.783.560 (11)143
C19—H19A⋯O4v0.972.483.227 (11)134
C19—H19A⋯O50.972.533.167 (11)123
C22′—H22D⋯O10.972.583.242 (11)126

Symmetry codes: (i) ; (ii) ; (iii) ; (iv) ; (v) .

  3 in total

1.  A short history of SHELX.

Authors:  George M Sheldrick
Journal:  Acta Crystallogr A       Date:  2007-12-21       Impact factor: 2.290

2.  Pharmacological researches on 2-(7'-theophyllinemethyl)1,3-dioxolane.

Authors:  J S Franzone; C Reboani; D Fonzo; R Di Carlo
Journal:  Farmaco Sci       Date:  1981-03

3.  Doxofylline exerts a prophylactic effect against bronchoconstriction and pleurisy induced by PAF.

Authors:  J S Franzone; R Cirillo; P Biffignandi
Journal:  Eur J Pharmacol       Date:  1989-06-20       Impact factor: 4.432

  3 in total

北京卡尤迪生物科技股份有限公司 © 2022-2023.