organic compounds
2-(tert-Butoxycarbonylamino)-2-(2-fluorophenyl)acetic acid
aDepartment of Chemistry, University of Sargodha, Sargodha, Pakistan, bDepartment of Chemistry, Government College University, Lahore, Pakistan, and cDepartment of Physics, University of Sargodha, Sargodha, Pakistan
*Correspondence e-mail: dmntahir_uos@yahoo.com
The title compound, C13H16FNO4, consists of conventional, centrosymmetric carboxylate dimers. These dimers form infinite polymeric chains due to intermolecular N—H⋯O hydrogen bonding. The 2-fluorophenyl unit is disordered over two sets of sites with an ocupancy ratio of 0.915 (3):0.085 (3).
Related literature
For hydrogen-bond motifs, see: Bernstein et al. (1995). For a related structure, see: González-Cameno et al. (1996).
Experimental
Crystal data
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Refinement
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Data collection: APEX2 (Bruker, 2007); cell SAINT (Bruker, 2007); data reduction: SAINT; 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, 1997) and PLATON (Spek, 2009); software used to prepare material for publication: WinGX (Farrugia, 1999) and PLATON.
Supporting information
https://doi.org/10.1107/S160053680904416X/cs2125sup1.cif
contains datablocks global, I. DOI:Structure factors: contains datablock I. DOI: https://doi.org/10.1107/S160053680904416X/cs2125Isup2.hkl
In first step 2-fluorophenyl glycine (0.169 g, 1 mmol) was dissolved in a solution of 1M NaHCO3 and cooled to 273 K. Then 2 equivalent of the di-tert-butyl dicarbonate (0.43 g, 2 mmol) was dissolved in 5 ml of 1,4 dioxane and also cooled to 273 K. Second solution was added dropwise to the former solution with constant stirring at 273 K for 2 h. Then the reaction mixture was stirred at ambient temperature for further 24 h. After this 25 ml of distilled water was added and aqous layer was extracted twice with ethyl acetate. The organic layer was back extracted with 1M NaHCO3 solution. The combined aqous layer was acidified to pH 2 with 10% HCl. The crude material was dissolved in ethyl acetate and evaporation of it affoarded the white prism of title compound (I).
The 2-fluorophenyl moiety is disordered. The benzene ring of the minor occupancy sites was refined using AFIX 66 and EADP. The coordinates of H-atom attached with C7 were refined.
The H-atoms were positioned geometrically (O–H = 0.82 Å, N–H = 0.86 Å, C–H = 0.93–0.96 Å) and refined as riding with Uiso(H) = 1.2Ueq(carrier) or 1.5Ueq(methyl C).
The
are used as broad spectrum antibiotics. The title compound (I, Fig. 1) has been prepared for the synthesis of different fluoro substituted cephalosporins.The
of (II) N-(t-Butoxycarbonyl)-2-phenylglycine (González-Cameno et al., 1996) has been published. The title compound (I) differs from (II) due to substitution of F-atom on the benzene ring at ortho position.In the molecules of the title compound 2-fluorophenyl moiety is disordered over two sets of sites with ocupancy ratio of 0.915 (3):0.085 (3). The dihedral angle between the disordered moiety is 7 (2)°. The molecules of the title compound form conventional dimers due to O–H···O type of intermolecular H-bondings with R22(8) ring motifs (Bernstein et al., 1995). The dimers are interlinked in the form of infinite one dimensional polymeric chains due to N—H···O type of intermolecular H-bonds (Table 1, Fig. 3). The benzene ring A (C1A—C6A), the group B (C7/C8/O1/O2) and C (N1/C9/O3/O4) are planar with r. m. s. deviations of 0.008, 0.0006 and 0.002 Å respectively, from the respective mean square planes. The major occupancy F1A-atom is at a distance of 0.0458 (74)Å from the plane of benzene ring. The dihedral angles between A/B, A/C and B/C are 80.63 (12), 80.14 (11) and 33.10 (8)°, respectively.
For hydrogen-bond motifs, see: Bernstein et al. (1995). For a related structure, see: González-Cameno et al. (1996).
Data collection: APEX2 (Bruker, 2007); cell
SAINT (Bruker, 2007); data reduction: SAINT (Bruker, 2007); 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, 1997) and PLATON (Spek, 2009); software used to prepare material for publication: WinGX (Farrugia, 1999) and PLATON (Spek, 2009).C13H16FNO4 | Z = 2 |
Mr = 269.27 | F(000) = 284 |
Triclinic, P1 | Dx = 1.361 Mg m−3 |
Hall symbol: -P 1 | Mo Kα radiation, λ = 0.71073 Å |
a = 5.3065 (3) Å | Cell parameters from 2440 reflections |
b = 10.6264 (6) Å | θ = 3.0–25.5° |
c = 12.4930 (6) Å | µ = 0.11 mm−1 |
α = 106.175 (3)° | T = 296 K |
β = 95.175 (2)° | Prism, white |
γ = 100.728 (3)° | 0.22 × 0.19 × 0.12 mm |
V = 657.18 (6) Å3 |
Bruker Kappa APEXII CCD diffractometer | 2440 independent reflections |
Radiation source: fine-focus sealed tube | 1826 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.029 |
Detector resolution: 7.70 pixels mm-1 | θmax = 25.5°, θmin = 3.0° |
ω scans | h = −6→6 |
Absorption correction: multi-scan (SADABS; Bruker, 2005) | k = −12→12 |
Tmin = 0.974, Tmax = 0.988 | l = −15→15 |
11718 measured reflections |
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)] = 0.035 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.094 | H atoms treated by a mixture of independent and constrained refinement |
S = 1.01 | w = 1/[σ2(Fo2) + (0.0414P)2 + 0.1509P] where P = (Fo2 + 2Fc2)/3 |
2440 reflections | (Δ/σ)max < 0.001 |
198 parameters | Δρmax = 0.14 e Å−3 |
0 restraints | Δρmin = −0.15 e Å−3 |
C13H16FNO4 | γ = 100.728 (3)° |
Mr = 269.27 | V = 657.18 (6) Å3 |
Triclinic, P1 | Z = 2 |
a = 5.3065 (3) Å | Mo Kα radiation |
b = 10.6264 (6) Å | µ = 0.11 mm−1 |
c = 12.4930 (6) Å | T = 296 K |
α = 106.175 (3)° | 0.22 × 0.19 × 0.12 mm |
β = 95.175 (2)° |
Bruker Kappa APEXII CCD diffractometer | 2440 independent reflections |
Absorption correction: multi-scan (SADABS; Bruker, 2005) | 1826 reflections with I > 2σ(I) |
Tmin = 0.974, Tmax = 0.988 | Rint = 0.029 |
11718 measured reflections |
R[F2 > 2σ(F2)] = 0.035 | 0 restraints |
wR(F2) = 0.094 | H atoms treated by a mixture of independent and constrained refinement |
S = 1.01 | Δρmax = 0.14 e Å−3 |
2440 reflections | Δρmin = −0.15 e Å−3 |
198 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. The coordinates of H7 were refined due to disorder in the adjacent ring and to check its role in H-bondings. |
x | y | z | Uiso*/Ueq | Occ. (<1) | |
F1A | 0.3735 (2) | 1.11138 (12) | 0.22973 (11) | 0.0633 (5) | 0.915 (3) |
O1 | −0.1893 (2) | 1.06206 (11) | 0.08285 (10) | 0.0471 (4) | |
O2 | −0.4647 (2) | 0.86319 (11) | 0.03740 (10) | 0.0500 (4) | |
O3 | 0.2330 (2) | 0.73869 (12) | 0.20577 (12) | 0.0566 (5) | |
O4 | −0.1233 (2) | 0.58870 (10) | 0.21489 (10) | 0.0423 (4) | |
N1 | −0.1695 (2) | 0.77405 (12) | 0.17674 (11) | 0.0387 (4) | |
C1A | −0.0132 (9) | 1.0140 (3) | 0.2816 (3) | 0.0351 (8) | 0.915 (3) |
C2A | 0.2103 (8) | 1.1122 (5) | 0.3090 (4) | 0.0438 (9) | 0.915 (3) |
C3A | 0.2789 (7) | 1.2105 (5) | 0.4113 (4) | 0.0575 (11) | 0.915 (3) |
C4A | 0.1121 (9) | 1.2123 (4) | 0.4889 (3) | 0.0608 (13) | 0.915 (3) |
C5A | −0.1156 (8) | 1.1190 (3) | 0.4644 (3) | 0.0565 (10) | 0.915 (3) |
C6A | −0.1775 (8) | 1.0200 (3) | 0.3618 (3) | 0.0456 (9) | 0.915 (3) |
C7 | −0.0754 (3) | 0.90636 (15) | 0.16792 (13) | 0.0350 (5) | |
C8 | −0.2649 (3) | 0.94137 (15) | 0.08892 (12) | 0.0345 (5) | |
C9 | 0.0012 (3) | 0.70217 (15) | 0.19954 (13) | 0.0363 (5) | |
C10 | 0.0182 (3) | 0.48439 (15) | 0.22791 (14) | 0.0419 (5) | |
C11 | 0.2318 (4) | 0.54035 (19) | 0.32723 (16) | 0.0569 (7) | |
C12 | 0.1142 (4) | 0.4254 (2) | 0.11932 (17) | 0.0687 (8) | |
C13 | −0.1926 (4) | 0.38239 (18) | 0.2507 (2) | 0.0670 (8) | |
C6B | −0.167 (6) | 1.049 (3) | 0.355 (3) | 0.024 (4) | 0.085 (3) |
F1B | −0.3871 (8) | 0.9486 (3) | 0.3406 (3) | 0.065 (5) | 0.085 (3) |
C1B | 0.004 (8) | 1.032 (4) | 0.276 (3) | 0.024 (4) | 0.085 (3) |
C2B | 0.249 (7) | 1.117 (4) | 0.300 (4) | 0.024 (4) | 0.085 (3) |
C3B | 0.323 (5) | 1.219 (4) | 0.402 (4) | 0.024 (4) | 0.085 (3) |
C4B | 0.152 (6) | 1.236 (3) | 0.480 (3) | 0.024 (4) | 0.085 (3) |
C5B | −0.093 (5) | 1.151 (3) | 0.457 (3) | 0.024 (4) | 0.085 (3) |
H1A | −0.33354 | 0.74109 | 0.16751 | 0.0464* | |
H11B | 0.36743 | 0.60249 | 0.31082 | 0.0854* | |
H11C | 0.30010 | 0.46833 | 0.34204 | 0.0854* | |
H12A | 0.24638 | 0.49209 | 0.10625 | 0.1030* | |
H12B | −0.02735 | 0.39635 | 0.05819 | 0.1030* | |
H12C | 0.18483 | 0.34993 | 0.12422 | 0.1030* | |
H13A | −0.33342 | 0.35205 | 0.18919 | 0.1004* | |
H13B | −0.25423 | 0.42301 | 0.31914 | 0.1004* | |
H13C | −0.12400 | 0.30732 | 0.25826 | 0.1004* | |
H1O | −0.30395 | 1.08012 | 0.04505 | 0.0565* | |
H3A | 0.43443 | 1.27405 | 0.42737 | 0.0689* | 0.915 (3) |
H4A | 0.15449 | 1.27770 | 0.55882 | 0.0727* | 0.915 (3) |
H5A | −0.22955 | 1.12194 | 0.51697 | 0.0677* | 0.915 (3) |
H6A | −0.33266 | 0.95622 | 0.34619 | 0.0547* | 0.915 (3) |
H7 | 0.083 (3) | 0.9064 (16) | 0.1350 (13) | 0.0419* | |
H11A | 0.16404 | 0.58594 | 0.39224 | 0.0854* | |
H2B | 0.36308 | 1.10485 | 0.24762 | 0.0290* | 0.085 (3) |
H3B | 0.48669 | 1.27522 | 0.41761 | 0.0290* | 0.085 (3) |
H4B | 0.20175 | 1.30421 | 0.54823 | 0.0290* | 0.085 (3) |
H5B | −0.20681 | 1.16284 | 0.50885 | 0.0290* | 0.085 (3) |
U11 | U22 | U33 | U12 | U13 | U23 | |
F1A | 0.0511 (8) | 0.0626 (8) | 0.0711 (9) | −0.0036 (6) | 0.0154 (6) | 0.0206 (6) |
O1 | 0.0543 (7) | 0.0359 (6) | 0.0548 (7) | 0.0109 (5) | −0.0032 (6) | 0.0225 (5) |
O2 | 0.0532 (8) | 0.0414 (7) | 0.0550 (7) | 0.0034 (6) | −0.0086 (6) | 0.0238 (6) |
O3 | 0.0364 (7) | 0.0523 (7) | 0.0964 (10) | 0.0152 (6) | 0.0153 (6) | 0.0418 (7) |
O4 | 0.0365 (6) | 0.0306 (6) | 0.0652 (8) | 0.0112 (5) | 0.0039 (5) | 0.0216 (5) |
N1 | 0.0339 (7) | 0.0310 (7) | 0.0553 (8) | 0.0096 (6) | 0.0024 (6) | 0.0195 (6) |
C1A | 0.0404 (14) | 0.0314 (14) | 0.0393 (11) | 0.0130 (11) | 0.0010 (9) | 0.0182 (10) |
C2A | 0.044 (2) | 0.0424 (13) | 0.0483 (15) | 0.0121 (15) | 0.0053 (12) | 0.0176 (11) |
C3A | 0.056 (2) | 0.0427 (14) | 0.064 (2) | 0.0053 (15) | −0.0120 (19) | 0.0108 (13) |
C4A | 0.082 (3) | 0.053 (2) | 0.0453 (14) | 0.0285 (18) | −0.0037 (16) | 0.0066 (15) |
C5A | 0.0739 (19) | 0.061 (2) | 0.0448 (14) | 0.0320 (17) | 0.0151 (12) | 0.0192 (15) |
C6A | 0.0497 (14) | 0.0474 (19) | 0.0475 (12) | 0.0162 (13) | 0.0101 (11) | 0.0224 (13) |
C7 | 0.0363 (8) | 0.0308 (8) | 0.0424 (9) | 0.0108 (7) | 0.0073 (7) | 0.0157 (7) |
C8 | 0.0425 (9) | 0.0306 (8) | 0.0333 (8) | 0.0116 (7) | 0.0072 (7) | 0.0115 (7) |
C9 | 0.0377 (9) | 0.0329 (8) | 0.0420 (9) | 0.0116 (7) | 0.0056 (7) | 0.0149 (7) |
C10 | 0.0418 (9) | 0.0309 (8) | 0.0578 (10) | 0.0166 (7) | 0.0037 (8) | 0.0169 (8) |
C11 | 0.0573 (11) | 0.0504 (11) | 0.0674 (12) | 0.0206 (9) | −0.0027 (9) | 0.0227 (9) |
C12 | 0.0867 (15) | 0.0594 (12) | 0.0668 (13) | 0.0373 (11) | 0.0143 (11) | 0.0153 (10) |
C13 | 0.0565 (12) | 0.0412 (10) | 0.1141 (18) | 0.0152 (9) | 0.0098 (11) | 0.0390 (11) |
C6B | 0.012 (6) | 0.022 (6) | 0.047 (8) | 0.004 (5) | 0.007 (5) | 0.022 (5) |
F1B | 0.053 (9) | 0.062 (9) | 0.075 (9) | 0.004 (7) | 0.023 (7) | 0.015 (7) |
C1B | 0.012 (6) | 0.022 (6) | 0.047 (8) | 0.004 (5) | 0.007 (5) | 0.022 (5) |
C2B | 0.012 (6) | 0.022 (6) | 0.047 (8) | 0.004 (5) | 0.007 (5) | 0.022 (5) |
C3B | 0.012 (6) | 0.022 (6) | 0.047 (8) | 0.004 (5) | 0.007 (5) | 0.022 (5) |
C4B | 0.012 (6) | 0.022 (6) | 0.047 (8) | 0.004 (5) | 0.007 (5) | 0.022 (5) |
C5B | 0.012 (6) | 0.022 (6) | 0.047 (8) | 0.004 (5) | 0.007 (5) | 0.022 (5) |
F1A—C2A | 1.372 (5) | C5B—C6B | 1.39 (5) |
F1B—C6B | 1.39 (3) | C7—C8 | 1.513 (2) |
O1—C8 | 1.296 (2) | C10—C11 | 1.504 (3) |
O2—C8 | 1.216 (2) | C10—C12 | 1.504 (3) |
O3—C9 | 1.207 (2) | C10—C13 | 1.512 (3) |
O4—C10 | 1.486 (2) | C2B—H2B | 0.9300 |
O4—C9 | 1.335 (2) | C3A—H3A | 0.9300 |
O1—H1O | 0.8200 | C3B—H3B | 0.9300 |
N1—C7 | 1.440 (2) | C4A—H4A | 0.9300 |
N1—C9 | 1.348 (2) | C4B—H4B | 0.9300 |
N1—H1A | 0.8600 | C5A—H5A | 0.9300 |
C1A—C2A | 1.371 (6) | C5B—H5B | 0.9200 |
C1A—C6A | 1.382 (6) | C6A—H6A | 0.9300 |
C1A—C7 | 1.518 (4) | C7—H7 | 0.969 (16) |
C1B—C2B | 1.39 (6) | C11—H11A | 0.9600 |
C1B—C7 | 1.57 (4) | C11—H11B | 0.9600 |
C1B—C6B | 1.40 (5) | C11—H11C | 0.9600 |
C2A—C3A | 1.374 (7) | C12—H12A | 0.9600 |
C2B—C3B | 1.39 (7) | C12—H12B | 0.9600 |
C3A—C4A | 1.369 (6) | C12—H12C | 0.9600 |
C3B—C4B | 1.39 (5) | C13—H13B | 0.9600 |
C4A—C5A | 1.362 (6) | C13—H13C | 0.9600 |
C4B—C5B | 1.39 (4) | C13—H13A | 0.9600 |
C5A—C6A | 1.379 (5) | ||
F1A···O1i | 3.1159 (16) | C12···O3 | 3.121 (3) |
F1A···C6Ai | 3.223 (4) | C13···F1Aviii | 3.266 (2) |
F1A···C8i | 3.189 (2) | C3A···H11Cvi | 3.0800 |
F1A···C13ii | 3.266 (2) | C3B···H11Cvi | 2.9700 |
F1B···N1 | 2.841 (4) | C3B···H5Bi | 2.9600 |
F1B···C8 | 3.250 (4) | C4A···H11Avii | 2.9600 |
F1B···O3iii | 2.738 (4) | C4B···H11Avii | 2.9900 |
F1B···C2Biii | 2.97 (4) | C5B···H11Avii | 3.0200 |
F1A···H7 | 2.347 (17) | C5B···H3Biii | 2.8700 |
F1B···H2Biii | 2.7300 | C6B···H2Biii | 2.9600 |
F1B···H1A | 2.7000 | C8···H1Ov | 2.6400 |
O1···C8iv | 3.3671 (19) | C9···H12A | 2.8200 |
O1···O1iv | 3.2057 (16) | C9···H11B | 2.8200 |
O1···O2v | 2.6399 (16) | H1A···O3iii | 2.3900 |
O1···F1Aiii | 3.1159 (16) | H1A···O2 | 2.4700 |
O1···C2A | 3.228 (5) | H1A···F1B | 2.7000 |
O1···C2B | 3.25 (4) | H1O···O1v | 2.9000 |
O2···C8v | 3.375 (2) | H1O···O2v | 1.8200 |
O2···O3iii | 3.1807 (18) | H1O···H1Ov | 2.3800 |
O2···N1 | 2.7130 (17) | H1O···C8v | 2.6400 |
O2···O1v | 2.6399 (16) | H2B···F1Bi | 2.7300 |
O3···C11 | 2.920 (2) | H2B···H7 | 2.3300 |
O3···F1Bi | 2.738 (4) | H2B···C6Bi | 2.9600 |
O3···C12 | 3.121 (3) | H3B···H13Bii | 2.5400 |
O3···C1A | 3.356 (4) | H3B···C5Bi | 2.8700 |
O3···O2i | 3.1807 (18) | H3B···H5Bi | 2.5500 |
O3···N1i | 3.1883 (16) | H4A···O4vii | 2.8200 |
O1···H1Ov | 2.9000 | H4A···H11Avii | 2.4400 |
O1···H13Cvi | 2.8400 | H4B···H11Avii | 2.5100 |
O2···H1Ov | 1.8200 | H5B···C3Biii | 2.9600 |
O2···H7iii | 2.843 (16) | H5B···H3Biii | 2.5500 |
O2···H1A | 2.4700 | H5B···H11Avii | 2.5700 |
O3···H7 | 2.423 (17) | H6A···N1 | 2.7700 |
O3···H1Ai | 2.3900 | H7···O2i | 2.843 (16) |
O3···H11B | 2.3700 | H7···F1A | 2.347 (17) |
O3···H12A | 2.5900 | H7···O3 | 2.423 (17) |
O4···H4Avii | 2.8200 | H7···H2B | 2.3300 |
N1···O3iii | 3.1883 (16) | H11A···C4Avii | 2.9600 |
N1···O2 | 2.7130 (17) | H11A···H13B | 2.4700 |
N1···F1B | 2.841 (4) | H11A···C5Bvii | 3.0200 |
N1···H6A | 2.7700 | H11A···H4Avii | 2.4400 |
C1A···O3 | 3.356 (4) | H11A···C4Bvii | 2.9900 |
C2A···O1 | 3.228 (5) | H11A···H4Bvii | 2.5100 |
C2B···O1 | 3.25 (4) | H11A···H5Bvii | 2.5700 |
C2B···F1Bi | 2.97 (4) | H11B···H12A | 2.4600 |
C2B···C6Bi | 3.37 (5) | H11B···O3 | 2.3700 |
C3A···C5Ai | 3.584 (6) | H11B···C9 | 2.8200 |
C3B···C6Bi | 3.53 (5) | H11C···H13C | 2.5000 |
C3B···C5Bi | 3.37 (4) | H11C···C3Aix | 3.0800 |
C4A···C6Avii | 3.530 (5) | H11C···H13Bi | 2.5300 |
C5A···C5Avii | 3.302 (5) | H11C···C3Bix | 2.9700 |
C5A···C6Avii | 3.369 (5) | H12A···H11B | 2.4600 |
C5A···C3Aiii | 3.584 (6) | H12A···O3 | 2.5900 |
C5B···C3Biii | 3.37 (4) | H12A···C9 | 2.8200 |
C6A···C5Avii | 3.369 (5) | H12B···H13A | 2.4800 |
C6A···C4Avii | 3.530 (5) | H12C···H13C | 2.5200 |
C6A···F1Aiii | 3.223 (4) | H13A···H12B | 2.4800 |
C6B···C3Biii | 3.53 (5) | H13B···H3Bviii | 2.5400 |
C6B···C2Biii | 3.37 (5) | H13B···H11A | 2.4700 |
C8···O2v | 3.375 (2) | H13B···H11Ciii | 2.5300 |
C8···O1iv | 3.3671 (19) | H13C···H12C | 2.5200 |
C8···F1Aiii | 3.189 (2) | H13C···O1ix | 2.8400 |
C8···F1B | 3.250 (4) | H13C···H11C | 2.5000 |
C11···O3 | 2.920 (2) | ||
C9—O4—C10 | 120.76 (12) | O4—C10—C13 | 101.89 (13) |
C8—O1—H1O | 109.00 | C11—C10—C12 | 112.88 (15) |
C7—N1—C9 | 119.57 (12) | C3B—C2B—H2B | 120.00 |
C9—N1—H1A | 120.00 | C1B—C2B—H2B | 120.00 |
C7—N1—H1A | 120.00 | C2A—C3A—H3A | 121.00 |
C6A—C1A—C7 | 122.5 (3) | C4A—C3A—H3A | 121.00 |
C2A—C1A—C6A | 116.5 (4) | C2B—C3B—H3B | 120.00 |
C2A—C1A—C7 | 121.0 (4) | C4B—C3B—H3B | 120.00 |
C6B—C1B—C7 | 118 (3) | C3A—C4A—H4A | 120.00 |
C2B—C1B—C7 | 122 (3) | C5A—C4A—H4A | 120.00 |
C2B—C1B—C6B | 120 (4) | C3B—C4B—H4B | 120.00 |
F1A—C2A—C1A | 117.9 (4) | C5B—C4B—H4B | 120.00 |
C1A—C2A—C3A | 123.5 (4) | C4A—C5A—H5A | 120.00 |
F1A—C2A—C3A | 118.6 (4) | C6A—C5A—H5A | 120.00 |
C1B—C2B—C3B | 120 (4) | C4B—C5B—H5B | 120.00 |
C2A—C3A—C4A | 118.2 (4) | C6B—C5B—H5B | 120.00 |
C2B—C3B—C4B | 120 (3) | C5A—C6A—H6A | 119.00 |
C3A—C4A—C5A | 120.5 (4) | C1A—C6A—H6A | 119.00 |
C3B—C4B—C5B | 120 (3) | C1A—C7—H7 | 107.8 (10) |
C4A—C5A—C6A | 120.1 (4) | C8—C7—H7 | 106.5 (10) |
C4B—C5B—C6B | 120 (3) | C1B—C7—H7 | 103.1 (18) |
C1A—C6A—C5A | 121.2 (4) | N1—C7—H7 | 108.1 (10) |
C1B—C6B—C5B | 120 (3) | C10—C11—H11B | 109.00 |
F1B—C6B—C1B | 119 (3) | C10—C11—H11C | 109.00 |
F1B—C6B—C5B | 120 (3) | C10—C11—H11A | 109.00 |
N1—C7—C8 | 111.29 (13) | H11A—C11—H11B | 109.00 |
N1—C7—C1A | 112.66 (17) | H11A—C11—H11C | 109.00 |
C1A—C7—C8 | 110.2 (2) | H11B—C11—H11C | 109.00 |
C1B—C7—C8 | 105.9 (15) | C10—C12—H12A | 110.00 |
N1—C7—C1B | 120.9 (15) | C10—C12—H12B | 109.00 |
O2—C8—C7 | 122.76 (15) | C10—C12—H12C | 109.00 |
O1—C8—O2 | 124.74 (15) | H12A—C12—H12B | 110.00 |
O1—C8—C7 | 112.50 (13) | H12B—C12—H12C | 109.00 |
O3—C9—O4 | 126.25 (15) | H12A—C12—H12C | 109.00 |
O4—C9—N1 | 110.30 (13) | C10—C13—H13B | 109.00 |
O3—C9—N1 | 123.45 (15) | C10—C13—H13C | 109.00 |
C12—C10—C13 | 110.98 (16) | C10—C13—H13A | 109.00 |
C11—C10—C13 | 110.15 (16) | H13A—C13—H13C | 109.00 |
O4—C10—C11 | 110.98 (14) | H13B—C13—H13C | 109.00 |
O4—C10—C12 | 109.43 (14) | H13A—C13—H13B | 109.00 |
C10—O4—C9—N1 | 172.81 (13) | C2A—C1A—C7—N1 | 135.7 (3) |
C9—O4—C10—C12 | −66.19 (19) | C6A—C1A—C2A—F1A | −178.0 (3) |
C9—O4—C10—C13 | 176.28 (15) | C2A—C1A—C7—C8 | −99.4 (4) |
C9—O4—C10—C11 | 59.04 (19) | C6A—C1A—C7—C8 | 79.6 (4) |
C10—O4—C9—O3 | −7.9 (2) | C6A—C1A—C7—N1 | −45.3 (4) |
C9—N1—C7—C8 | 151.29 (14) | F1A—C2A—C3A—C4A | 178.6 (4) |
C7—N1—C9—O4 | 174.06 (13) | C1A—C2A—C3A—C4A | −1.6 (7) |
C9—N1—C7—C1A | −84.4 (3) | C2A—C3A—C4A—C5A | −0.2 (7) |
C7—N1—C9—O3 | −5.2 (2) | C3A—C4A—C5A—C6A | 1.4 (6) |
C7—C1A—C2A—F1A | 1.1 (6) | C4A—C5A—C6A—C1A | −0.8 (6) |
C7—C1A—C2A—C3A | −178.7 (4) | N1—C7—C8—O1 | 177.52 (12) |
C2A—C1A—C6A—C5A | −0.9 (6) | N1—C7—C8—O2 | −2.7 (2) |
C7—C1A—C6A—C5A | 180.0 (3) | C1A—C7—C8—O1 | 51.8 (2) |
C6A—C1A—C2A—C3A | 2.2 (7) | C1A—C7—C8—O2 | −128.4 (2) |
Symmetry codes: (i) x+1, y, z; (ii) x+1, y+1, z; (iii) x−1, y, z; (iv) −x, −y+2, −z; (v) −x−1, −y+2, −z; (vi) x, y+1, z; (vii) −x, −y+2, −z+1; (viii) x−1, y−1, z; (ix) x, y−1, z. |
D—H···A | D—H | H···A | D···A | D—H···A |
N1—H1A···O3iii | 0.8600 | 2.3900 | 3.1883 (16) | 155.00 |
O1—H1O···O2v | 0.8200 | 1.8200 | 2.6399 (16) | 174.00 |
Symmetry codes: (iii) x−1, y, z; (v) −x−1, −y+2, −z. |
Experimental details
Crystal data | |
Chemical formula | C13H16FNO4 |
Mr | 269.27 |
Crystal system, space group | Triclinic, P1 |
Temperature (K) | 296 |
a, b, c (Å) | 5.3065 (3), 10.6264 (6), 12.4930 (6) |
α, β, γ (°) | 106.175 (3), 95.175 (2), 100.728 (3) |
V (Å3) | 657.18 (6) |
Z | 2 |
Radiation type | Mo Kα |
µ (mm−1) | 0.11 |
Crystal size (mm) | 0.22 × 0.19 × 0.12 |
Data collection | |
Diffractometer | Bruker Kappa APEXII CCD |
Absorption correction | Multi-scan (SADABS; Bruker, 2005) |
Tmin, Tmax | 0.974, 0.988 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 11718, 2440, 1826 |
Rint | 0.029 |
(sin θ/λ)max (Å−1) | 0.606 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.035, 0.094, 1.01 |
No. of reflections | 2440 |
No. of parameters | 198 |
H-atom treatment | H atoms treated by a mixture of independent and constrained refinement |
Δρmax, Δρmin (e Å−3) | 0.14, −0.15 |
Computer programs: APEX2 (Bruker, 2007), SAINT (Bruker, 2007), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), ORTEP-3 for Windows (Farrugia, 1997) and PLATON (Spek, 2009), WinGX (Farrugia, 1999) and PLATON (Spek, 2009).
D—H···A | D—H | H···A | D···A | D—H···A |
N1—H1A···O3i | 0.8600 | 2.3900 | 3.1883 (16) | 155.00 |
O1—H1O···O2ii | 0.8200 | 1.8200 | 2.6399 (16) | 174.00 |
Symmetry codes: (i) x−1, y, z; (ii) −x−1, −y+2, −z. |
Acknowledgements
MMA gratefully acknowledges the Higher Education Commission, Islamabad, Pakistan, for providing him with a Scholaship under the Indigenous PhD Program (PIN 042–120550-PS2–153).
References
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 (2005). SADABS. Bruker AXS Inc., Madison, Wisconsin, USA. Google Scholar
Bruker (2007). APEX2 and SAINT. Bruker AXS Inc., Madison, Wisconsin, USA. Google Scholar
Farrugia, L. J. (1997). J. Appl. Cryst. 30, 565. CrossRef IUCr Journals Google Scholar
Farrugia, L. J. (1999). J. Appl. Cryst. 32, 837–838. CrossRef CAS IUCr Journals Google Scholar
González-Cameno, A. M., Badía, D., Domínguez, E., Arriortua, M. I., Urtiaga, M. K. & Solans, X. (1996). Acta Cryst. C52, 3169–3171. CSD CrossRef Web of Science 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
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The cephalosporins are used as broad spectrum antibiotics. The title compound (I, Fig. 1) has been prepared for the synthesis of different fluoro substituted cephalosporins.
The crystal structure of (II) N-(t-Butoxycarbonyl)-2-phenylglycine (González-Cameno et al., 1996) has been published. The title compound (I) differs from (II) due to substitution of F-atom on the benzene ring at ortho position.
In the molecules of the title compound 2-fluorophenyl moiety is disordered over two sets of sites with ocupancy ratio of 0.915 (3):0.085 (3). The dihedral angle between the disordered moiety is 7 (2)°. The molecules of the title compound form conventional dimers due to O–H···O type of intermolecular H-bondings with R22(8) ring motifs (Bernstein et al., 1995). The dimers are interlinked in the form of infinite one dimensional polymeric chains due to N—H···O type of intermolecular H-bonds (Table 1, Fig. 3). The benzene ring A (C1A—C6A), the group B (C7/C8/O1/O2) and C (N1/C9/O3/O4) are planar with r. m. s. deviations of 0.008, 0.0006 and 0.002 Å respectively, from the respective mean square planes. The major occupancy F1A-atom is at a distance of 0.0458 (74)Å from the plane of benzene ring. The dihedral angles between A/B, A/C and B/C are 80.63 (12), 80.14 (11) and 33.10 (8)°, respectively.