organic compounds
(4-Nitrophenolato)(subphthalocyaninato)boron(III)1
aDepartment of Chemical Engineering & Applied Chemistry, University of Toronto, 200 College Street, Toronto, Ontario, Canada M5S 3E5, and bDepartment of Chemistry, University of Toronto, 80 St. George Street, Toronto, Ontario, Canada M5S 3H6
*Correspondence e-mail: tim.bender@utoronto.ca
The main feature of the structure of the title compound, C30H16BN7O3 or NO2PhO-BsubPc, are pairs of molecules linked through π-interactions between the concave faces of the BsubPc fragments at a distance of 3.5430 (11) Å across an inversion centre. However, the angle between the planes of the five- and six-menbered rings involved in this interaction is 1.44 (10)°, causing the interacting BsubPcs units to be slightly askew rather than parallel as is typical for π-stacking interactions.
Related literature
For a general review of boronsubphthalocyanine compounds (BsubPcs), see: Claessens et al. (2002). For synthesis of BsubPcs and their derivatives, see: Zyskowski & Kennedy (2000); Claessens et al. (2003); Paton et al. (2010). For the application of BsubPcs in organic electronic devices, see: Morse et al. (2010) and references cited therein; Gommans et al. (2007). For related structures of non-halogenated BsubPc derivatives, see: Potz et al. (2000); Paton et al. (2010a,b).
Experimental
Crystal data
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Data collection: COLLECT (Nonius, 2002); cell DENZO-SMN (Otwinowski & Minor, 1997); data reduction: DENZO-SMN; program(s) used to solve structure: SIR92 (Altomare et al., 1994); program(s) used to refine structure: SHELXTL (Sheldrick, 2008); molecular graphics: PLATON (Spek, 2009); software used to prepare material for publication: SHELXTL.
Supporting information
https://doi.org/10.1107/S1600536810050580/nc2204sup1.cif
contains datablocks global, I. DOI:Structure factors: contains datablock I. DOI: https://doi.org/10.1107/S1600536810050580/nc2204Isup2.hkl
Cl-BsubPc, synthesized by a procedure adapted from Zyskowski and Kennedy (2000), The title compound was synthesized using a method adapted from Claessens et al. (2003) and Paton et al. (2010): 4-Nitrophenoxy-boronsubphthalocyanine. Cl-BsubPc (0.510 g, 0.0012 mol) was mixed with 4-nitrophenol (0.567 g, 0.0041 mol) in toluene (10 ml) in a cylindrical vessel fitted with a reflux condenser and argon inlet. The mixture was stirred and heated at reflux under a constant pressure of argon for 17 h. Reaction was determined complete via HPLC by the absence of Cl-BsubPc. The solvent was evaporated under rotary evaporation. The crude product purified on a Kauffman column using standard basic alumina (300 mesh) as the adsorbent and dichloromethane as the
The product elutes from the Kauffman column while the excess phenol remains adsorbed. The dichloromethane was then removed under reduced pressure yielding a dark pink/magenta powder of the title compound (0.223 g, 37%).We report the
of 4-nitrophenoxy-boronsubphthalocyanine (NO2PhO-BsubPcs), which possesses an electron withdrawing group in the para position of the phenoxy molecular fragment. We have recently reported a study of the crystal structures of a series of para-substituted phenoxy-BsubPcs wherein most of the substituents were electron donating (alkyl, Paton et al., 2010). Contained within the study was 4-fluorophenoxy-BsubPcs (FPhO-BsubPcs). While fluorine is moderately electron withdrawing we did not observe any difference in its compared to the baseline phenoxy-BsubPcs. We have since reported the structure of a derivative with a stronger electron withdrawing group, 4-acetylphenoxy-BsubPcs. (Paton et al., 2011) This structure was only slightly different from the typical FPhO-BsubPcs crystal packing motif. We synthesized the title compound as the next derivative in a series studying the effects of electron withdrawing groups on related compounds.The title compound was prepared by a method described previously (Paton et al., 2010; Claessens et al., 2003), in which chloro-boronsubphthalocyanine (Cl-BsubPcs) is reacted with an excess of the appropriate phenol until substitution is complete. Further details are given in the experimental sections which accompany this article.
The molecular structure of the title compound obtained from benzene-heptane diffusion crystallization is shown in Fig. 1. The compound shows the expected bowl shape of the BsubPcs ligand. The boron-oxygen-carbon (B—O—C) angle in the molecule is 124.56 (14)°, which differs significantly from both the experimental (115.2 (2)°) and computational gas-phase (ca 115°) values of B—O—C angle for the typical phenoxy derivatized FPhO-BsubPcs (Paton et al., 2010). Examining the torsion angle between the boron, oxygen, and the first two carbon atoms on the phenoxy substituent (B—O—C—C) gives values of -44.7 (3)°. In contrast, the angle associated with FPhO-BsubPcs is -91.0 (2)° relative to the plane of the BsubPcs fragment (Paton et al., 2010).
The π-interaction separated by a centroid-to-centroid distance of 3.5430 (11) Å. These pairs of molecules form one-dimensional rows aligned with the b axis. The π-interaction creating the pairs is between two sets of BsubPcs fragments whose ring planes are not perfectly parallel; the planes of the two rings (C9/C10/C11/C12/C13/C14/C15 and C9/C10/C15/C16/N3 on neighbouring molecules) are at an angle of 1.44 (10)°.
of NO2PhO-BsubPcs (Fig. 2) shows pairs of BsubPcs fragments associated through aFor a general review of boronsubphthalocyanine compounds (BsubPcs), see: Claessens et al. (2002). For synthesis of BsubPcs and their derivatives, see: Zyskowski & Kennedy (2000); Claessens et al. (2003); Paton et al. (2010). For the application of BsubPcs in organic electronic devices, see: Morse et al. (2010) and references cited therein; Gommans et al. (2007). For related structures of non-halogenated BsubPc derivatives, see: Potz et al. (2000); Paton et al. (2010, 2011).
Data collection: COLLECT (Nonius, 2002); cell
DENZO-SMN (Otwinowski & Minor, 1997); data reduction: DENZO-SMN (Otwinowski & Minor, 1997); program(s) used to solve structure: SIR92 (Altomare et al., 1994); program(s) used to refine structure: SHELXTL (Sheldrick, 2008); molecular graphics: PLATON (Spek, 2009); software used to prepare material for publication: SHELXTL (Sheldrick, 2008).Fig. 1. The molecular structure with labels of NO2PhO-BsubPc with displacement ellipsoids drawn at the 30% probability level. | |
Fig. 2. Extended crystal structure of NO2PhO-BsubPc shown from two views. |
C30H16BN7O3 | F(000) = 1096 |
Mr = 533.31 | Dx = 1.488 Mg m−3 |
Monoclinic, P21/n | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: -P 2yn | Cell parameters from 19982 reflections |
a = 15.6597 (4) Å | θ = 2.7–27.5° |
b = 8.2959 (1) Å | µ = 0.10 mm−1 |
c = 19.5409 (5) Å | T = 150 K |
β = 110.3060 (9)° | Needle, purple |
V = 2380.82 (9) Å3 | 0.40 × 0.26 × 0.20 mm |
Z = 4 |
Nonius KappaCCD diffractometer | 5413 independent reflections |
Radiation source: fine-focus sealed tube | 3646 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.052 |
Detector resolution: 9 pixels mm-1 | θmax = 27.5°, θmin = 2.7° |
φ scans and ω scans with κ offsets | h = −20→20 |
Absorption correction: multi-scan (SORTAV; Blessing, 1995) | k = −10→10 |
Tmin = 0.788, Tmax = 1.002 | l = −20→25 |
19982 measured reflections |
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)] = 0.049 | H-atom parameters constrained |
wR(F2) = 0.141 | w = 1/[σ2(Fo2) + (0.0779P)2 + 0.3383P] where P = (Fo2 + 2Fc2)/3 |
S = 1.03 | (Δ/σ)max = 0.001 |
5413 reflections | Δρmax = 0.27 e Å−3 |
371 parameters | Δρmin = −0.33 e Å−3 |
0 restraints | Extinction correction: SHELXTL (Version 6.1; Sheldrick, 2008), Fc*=kFc[1+0.001xFc2λ3/sin(2θ)]-1/4 |
Primary atom site location: structure-invariant direct methods | Extinction coefficient: 0.0062 (13) |
C30H16BN7O3 | V = 2380.82 (9) Å3 |
Mr = 533.31 | Z = 4 |
Monoclinic, P21/n | Mo Kα radiation |
a = 15.6597 (4) Å | µ = 0.10 mm−1 |
b = 8.2959 (1) Å | T = 150 K |
c = 19.5409 (5) Å | 0.40 × 0.26 × 0.20 mm |
β = 110.3060 (9)° |
Nonius KappaCCD diffractometer | 5413 independent reflections |
Absorption correction: multi-scan (SORTAV; Blessing, 1995) | 3646 reflections with I > 2σ(I) |
Tmin = 0.788, Tmax = 1.002 | Rint = 0.052 |
19982 measured reflections |
R[F2 > 2σ(F2)] = 0.049 | 0 restraints |
wR(F2) = 0.141 | H-atom parameters constrained |
S = 1.03 | Δρmax = 0.27 e Å−3 |
5413 reflections | Δρmin = −0.33 e Å−3 |
371 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 | ||
O1 | 0.16074 (8) | 0.41514 (14) | 0.53315 (7) | 0.0317 (3) | |
O2 | 0.02540 (12) | 1.06889 (18) | 0.61544 (8) | 0.0608 (5) | |
O3 | 0.15045 (11) | 1.04404 (18) | 0.70707 (8) | 0.0506 (4) | |
N1 | 0.23549 (10) | 0.23375 (17) | 0.47826 (8) | 0.0264 (3) | |
N2 | 0.27422 (10) | 0.41366 (17) | 0.39899 (8) | 0.0280 (3) | |
N3 | 0.31349 (10) | 0.47425 (16) | 0.52541 (8) | 0.0257 (3) | |
N4 | 0.41782 (10) | 0.47197 (17) | 0.64801 (8) | 0.0278 (4) | |
N5 | 0.30600 (10) | 0.26475 (17) | 0.60546 (8) | 0.0264 (3) | |
N6 | 0.26077 (10) | 0.00320 (18) | 0.55444 (8) | 0.0295 (4) | |
N7 | 0.09529 (12) | 0.99495 (19) | 0.64927 (9) | 0.0365 (4) | |
C1 | 0.23052 (12) | 0.0710 (2) | 0.48797 (10) | 0.0260 (4) | |
C2 | 0.21032 (12) | 0.0005 (2) | 0.41596 (10) | 0.0274 (4) | |
C3 | 0.19231 (12) | −0.1576 (2) | 0.39047 (10) | 0.0307 (4) | |
H3A | 0.1886 | −0.2423 | 0.4221 | 0.037* | |
C4 | 0.18000 (13) | −0.1875 (2) | 0.31828 (11) | 0.0339 (5) | |
H4A | 0.1664 | −0.2940 | 0.2999 | 0.041* | |
C5 | 0.18705 (14) | −0.0644 (2) | 0.27145 (11) | 0.0349 (5) | |
H5A | 0.1789 | −0.0893 | 0.2221 | 0.042* | |
C6 | 0.20568 (12) | 0.0928 (2) | 0.29572 (10) | 0.0314 (4) | |
H6A | 0.2113 | 0.1756 | 0.2639 | 0.038* | |
C7 | 0.21605 (12) | 0.1264 (2) | 0.36818 (10) | 0.0279 (4) | |
C8 | 0.23789 (12) | 0.2738 (2) | 0.41126 (10) | 0.0267 (4) | |
C9 | 0.31727 (12) | 0.5053 (2) | 0.45789 (10) | 0.0268 (4) | |
C10 | 0.38989 (12) | 0.6226 (2) | 0.46887 (10) | 0.0285 (4) | |
C11 | 0.42434 (13) | 0.6997 (2) | 0.42060 (11) | 0.0326 (4) | |
H11A | 0.3973 | 0.6845 | 0.3694 | 0.039* | |
C12 | 0.49891 (14) | 0.7987 (2) | 0.44965 (11) | 0.0349 (5) | |
H12A | 0.5225 | 0.8544 | 0.4176 | 0.042* | |
C13 | 0.54074 (13) | 0.8193 (2) | 0.52464 (11) | 0.0331 (5) | |
H13A | 0.5921 | 0.8885 | 0.5425 | 0.040* | |
C14 | 0.50902 (12) | 0.7412 (2) | 0.57373 (10) | 0.0308 (4) | |
H14A | 0.5383 | 0.7540 | 0.6249 | 0.037* | |
C15 | 0.43269 (12) | 0.6432 (2) | 0.54535 (10) | 0.0283 (4) | |
C16 | 0.38688 (12) | 0.5356 (2) | 0.58077 (10) | 0.0276 (4) | |
C17 | 0.38092 (12) | 0.3310 (2) | 0.65744 (9) | 0.0268 (4) | |
C18 | 0.42053 (12) | 0.2038 (2) | 0.70988 (9) | 0.0274 (4) | |
C19 | 0.49496 (12) | 0.2021 (2) | 0.77467 (10) | 0.0317 (4) | |
H19A | 0.5284 | 0.2977 | 0.7932 | 0.038* | |
C20 | 0.51877 (13) | 0.0575 (2) | 0.81119 (11) | 0.0384 (5) | |
H20A | 0.5679 | 0.0548 | 0.8565 | 0.046* | |
C21 | 0.47226 (13) | −0.0857 (2) | 0.78312 (11) | 0.0384 (5) | |
H21A | 0.4902 | −0.1832 | 0.8097 | 0.046* | |
C22 | 0.40048 (13) | −0.0871 (2) | 0.71720 (10) | 0.0341 (4) | |
H22A | 0.3709 | −0.1850 | 0.6971 | 0.041* | |
C23 | 0.37281 (12) | 0.0595 (2) | 0.68102 (10) | 0.0282 (4) | |
C24 | 0.30390 (12) | 0.0996 (2) | 0.61117 (10) | 0.0275 (4) | |
C25 | 0.14725 (12) | 0.5556 (2) | 0.56414 (10) | 0.0273 (4) | |
C26 | 0.19917 (12) | 0.6002 (2) | 0.63496 (10) | 0.0307 (4) | |
H26A | 0.2461 | 0.5311 | 0.6640 | 0.037* | |
C27 | 0.18261 (12) | 0.7450 (2) | 0.66318 (10) | 0.0302 (4) | |
H27A | 0.2188 | 0.7774 | 0.7111 | 0.036* | |
C28 | 0.11247 (13) | 0.8418 (2) | 0.62041 (10) | 0.0290 (4) | |
C29 | 0.05805 (13) | 0.7966 (2) | 0.55091 (10) | 0.0322 (4) | |
H29A | 0.0088 | 0.8630 | 0.5232 | 0.039* | |
C30 | 0.07611 (12) | 0.6538 (2) | 0.52219 (10) | 0.0299 (4) | |
H30A | 0.0402 | 0.6226 | 0.4740 | 0.036* | |
B1 | 0.24932 (14) | 0.3530 (2) | 0.53782 (11) | 0.0264 (4) |
U11 | U22 | U33 | U12 | U13 | U23 | |
O1 | 0.0254 (7) | 0.0321 (7) | 0.0366 (8) | 0.0012 (5) | 0.0094 (6) | −0.0069 (6) |
O2 | 0.0690 (12) | 0.0495 (9) | 0.0467 (10) | 0.0283 (8) | −0.0017 (9) | −0.0077 (7) |
O3 | 0.0539 (10) | 0.0491 (9) | 0.0383 (9) | 0.0037 (7) | 0.0027 (8) | −0.0168 (7) |
N1 | 0.0260 (8) | 0.0272 (8) | 0.0251 (8) | 0.0008 (6) | 0.0077 (6) | 0.0006 (6) |
N2 | 0.0279 (8) | 0.0262 (8) | 0.0267 (8) | 0.0025 (6) | 0.0054 (7) | 0.0022 (6) |
N3 | 0.0253 (8) | 0.0254 (7) | 0.0246 (8) | 0.0018 (6) | 0.0065 (6) | −0.0008 (6) |
N4 | 0.0277 (8) | 0.0296 (8) | 0.0261 (9) | 0.0004 (6) | 0.0091 (7) | −0.0016 (6) |
N5 | 0.0250 (8) | 0.0296 (8) | 0.0246 (8) | 0.0006 (6) | 0.0088 (6) | 0.0011 (6) |
N6 | 0.0261 (8) | 0.0330 (8) | 0.0297 (9) | −0.0038 (6) | 0.0099 (7) | 0.0015 (7) |
N7 | 0.0424 (10) | 0.0367 (9) | 0.0281 (9) | 0.0037 (8) | 0.0092 (8) | −0.0025 (7) |
C1 | 0.0226 (9) | 0.0270 (9) | 0.0283 (10) | −0.0004 (7) | 0.0089 (8) | 0.0015 (7) |
C2 | 0.0221 (9) | 0.0315 (9) | 0.0272 (10) | 0.0012 (7) | 0.0069 (8) | −0.0008 (7) |
C3 | 0.0276 (10) | 0.0292 (9) | 0.0348 (11) | −0.0003 (7) | 0.0102 (8) | −0.0017 (8) |
C4 | 0.0315 (11) | 0.0316 (10) | 0.0377 (12) | −0.0021 (8) | 0.0111 (9) | −0.0075 (8) |
C5 | 0.0362 (11) | 0.0378 (11) | 0.0300 (11) | 0.0006 (8) | 0.0108 (9) | −0.0065 (8) |
C6 | 0.0297 (10) | 0.0355 (10) | 0.0283 (10) | 0.0004 (8) | 0.0092 (8) | 0.0012 (8) |
C7 | 0.0223 (9) | 0.0304 (9) | 0.0289 (10) | 0.0003 (7) | 0.0061 (8) | −0.0015 (7) |
C8 | 0.0233 (9) | 0.0299 (9) | 0.0257 (10) | 0.0034 (7) | 0.0068 (7) | 0.0018 (7) |
C9 | 0.0281 (10) | 0.0253 (9) | 0.0257 (10) | 0.0046 (7) | 0.0078 (8) | 0.0025 (7) |
C10 | 0.0281 (10) | 0.0241 (9) | 0.0326 (11) | 0.0047 (7) | 0.0098 (8) | 0.0009 (7) |
C11 | 0.0362 (11) | 0.0266 (9) | 0.0360 (11) | 0.0059 (8) | 0.0138 (9) | 0.0027 (8) |
C12 | 0.0379 (11) | 0.0272 (9) | 0.0453 (13) | 0.0038 (8) | 0.0217 (10) | 0.0032 (8) |
C13 | 0.0266 (10) | 0.0249 (9) | 0.0487 (13) | 0.0017 (7) | 0.0143 (9) | −0.0002 (8) |
C14 | 0.0269 (10) | 0.0275 (9) | 0.0340 (11) | 0.0046 (7) | 0.0054 (8) | 0.0002 (8) |
C15 | 0.0272 (10) | 0.0241 (9) | 0.0331 (11) | 0.0036 (7) | 0.0100 (8) | 0.0017 (7) |
C16 | 0.0260 (10) | 0.0261 (9) | 0.0294 (10) | 0.0019 (7) | 0.0079 (8) | −0.0033 (7) |
C17 | 0.0226 (9) | 0.0333 (10) | 0.0244 (10) | 0.0003 (7) | 0.0078 (8) | −0.0025 (7) |
C18 | 0.0255 (10) | 0.0343 (10) | 0.0244 (10) | 0.0007 (7) | 0.0113 (8) | 0.0020 (7) |
C19 | 0.0259 (10) | 0.0403 (11) | 0.0291 (10) | −0.0021 (8) | 0.0098 (8) | −0.0005 (8) |
C20 | 0.0278 (11) | 0.0491 (12) | 0.0335 (11) | −0.0006 (8) | 0.0047 (9) | 0.0086 (9) |
C21 | 0.0299 (11) | 0.0423 (11) | 0.0404 (12) | 0.0019 (8) | 0.0089 (9) | 0.0132 (9) |
C22 | 0.0303 (11) | 0.0374 (10) | 0.0351 (11) | −0.0002 (8) | 0.0121 (9) | 0.0063 (8) |
C23 | 0.0269 (10) | 0.0340 (10) | 0.0262 (10) | 0.0001 (7) | 0.0121 (8) | 0.0035 (8) |
C24 | 0.0268 (10) | 0.0297 (9) | 0.0285 (10) | −0.0015 (7) | 0.0128 (8) | 0.0015 (7) |
C25 | 0.0259 (10) | 0.0288 (9) | 0.0293 (10) | −0.0010 (7) | 0.0124 (8) | −0.0014 (7) |
C26 | 0.0239 (10) | 0.0403 (10) | 0.0260 (10) | 0.0039 (8) | 0.0061 (8) | 0.0000 (8) |
C27 | 0.0261 (10) | 0.0400 (10) | 0.0247 (10) | −0.0016 (8) | 0.0090 (8) | −0.0022 (8) |
C28 | 0.0316 (10) | 0.0306 (9) | 0.0267 (10) | −0.0023 (7) | 0.0125 (8) | −0.0019 (7) |
C29 | 0.0331 (11) | 0.0326 (10) | 0.0273 (10) | 0.0020 (8) | 0.0061 (8) | 0.0013 (8) |
C30 | 0.0302 (10) | 0.0330 (10) | 0.0244 (10) | 0.0001 (8) | 0.0068 (8) | −0.0006 (8) |
B1 | 0.0245 (11) | 0.0280 (10) | 0.0264 (11) | 0.0012 (8) | 0.0084 (9) | −0.0008 (8) |
O1—C25 | 1.363 (2) | C10—C11 | 1.394 (3) |
O1—B1 | 1.453 (2) | C10—C15 | 1.420 (3) |
O2—N7 | 1.228 (2) | C11—C12 | 1.378 (3) |
O3—N7 | 1.229 (2) | C11—H11A | 0.9500 |
N1—C8 | 1.364 (2) | C12—C13 | 1.393 (3) |
N1—C1 | 1.369 (2) | C12—H12A | 0.9500 |
N1—B1 | 1.485 (2) | C13—C14 | 1.385 (3) |
N2—C9 | 1.349 (2) | C13—H13A | 0.9500 |
N2—C8 | 1.350 (2) | C14—C15 | 1.392 (3) |
N3—C9 | 1.365 (2) | C14—H14A | 0.9500 |
N3—C16 | 1.374 (2) | C15—C16 | 1.461 (3) |
N3—B1 | 1.500 (2) | C17—C18 | 1.451 (2) |
N4—C16 | 1.341 (2) | C18—C19 | 1.392 (3) |
N4—C17 | 1.345 (2) | C18—C23 | 1.421 (3) |
N5—C17 | 1.372 (2) | C19—C20 | 1.379 (3) |
N5—C24 | 1.376 (2) | C19—H19A | 0.9500 |
N5—B1 | 1.502 (2) | C20—C21 | 1.401 (3) |
N6—C1 | 1.342 (2) | C20—H20A | 0.9500 |
N6—C24 | 1.344 (2) | C21—C22 | 1.385 (3) |
N7—C28 | 1.453 (2) | C21—H21A | 0.9500 |
C1—C2 | 1.454 (2) | C22—C23 | 1.398 (3) |
C2—C3 | 1.397 (2) | C22—H22A | 0.9500 |
C2—C7 | 1.424 (2) | C23—C24 | 1.455 (3) |
C3—C4 | 1.378 (3) | C25—C26 | 1.390 (2) |
C3—H3A | 0.9500 | C25—C30 | 1.394 (2) |
C4—C5 | 1.401 (3) | C26—C27 | 1.383 (3) |
C4—H4A | 0.9500 | C26—H26A | 0.9500 |
C5—C6 | 1.383 (3) | C27—C28 | 1.383 (3) |
C5—H5A | 0.9500 | C27—H27A | 0.9500 |
C6—C7 | 1.396 (2) | C28—C29 | 1.381 (3) |
C6—H6A | 0.9500 | C29—C30 | 1.382 (2) |
C7—C8 | 1.457 (2) | C29—H29A | 0.9500 |
C9—C10 | 1.455 (3) | C30—H30A | 0.9500 |
C25—O1—B1 | 124.58 (14) | C13—C14—H14A | 121.2 |
C8—N1—C1 | 113.27 (14) | C15—C14—H14A | 121.2 |
C8—N1—B1 | 123.03 (15) | C14—C15—C10 | 121.07 (17) |
C1—N1—B1 | 123.23 (15) | C14—C15—C16 | 131.53 (17) |
C9—N2—C8 | 116.73 (15) | C10—C15—C16 | 107.15 (15) |
C9—N3—C16 | 112.71 (15) | N4—C16—N3 | 123.03 (16) |
C9—N3—B1 | 122.61 (15) | N4—C16—C15 | 129.40 (16) |
C16—N3—B1 | 123.05 (15) | N3—C16—C15 | 105.50 (15) |
C16—N4—C17 | 116.75 (15) | N4—C17—N5 | 122.97 (16) |
C17—N5—C24 | 112.15 (15) | N4—C17—C18 | 129.05 (16) |
C17—N5—B1 | 123.28 (15) | N5—C17—C18 | 106.13 (15) |
C24—N5—B1 | 122.21 (15) | C19—C18—C23 | 120.77 (16) |
C1—N6—C24 | 117.15 (15) | C19—C18—C17 | 131.87 (16) |
O2—N7—O3 | 122.68 (17) | C23—C18—C17 | 107.18 (15) |
O2—N7—C28 | 118.57 (16) | C20—C19—C18 | 118.05 (17) |
O3—N7—C28 | 118.74 (16) | C20—C19—H19A | 121.0 |
N6—C1—N1 | 121.98 (16) | C18—C19—H19A | 121.0 |
N6—C1—C2 | 130.79 (16) | C19—C20—C21 | 121.60 (19) |
N1—C1—C2 | 105.44 (15) | C19—C20—H20A | 119.2 |
C3—C2—C7 | 120.36 (17) | C21—C20—H20A | 119.2 |
C3—C2—C1 | 132.24 (17) | C22—C21—C20 | 121.01 (18) |
C7—C2—C1 | 107.32 (15) | C22—C21—H21A | 119.5 |
C4—C3—C2 | 118.25 (17) | C20—C21—H21A | 119.5 |
C4—C3—H3A | 120.9 | C21—C22—C23 | 118.17 (18) |
C2—C3—H3A | 120.9 | C21—C22—H22A | 120.9 |
C3—C4—C5 | 121.49 (17) | C23—C22—H22A | 120.9 |
C3—C4—H4A | 119.3 | C22—C23—C18 | 120.29 (17) |
C5—C4—H4A | 119.3 | C22—C23—C24 | 132.28 (17) |
C6—C5—C4 | 121.21 (18) | C18—C23—C24 | 107.23 (15) |
C6—C5—H5A | 119.4 | N6—C24—N5 | 123.04 (16) |
C4—C5—H5A | 119.4 | N6—C24—C23 | 129.39 (16) |
C5—C6—C7 | 118.18 (17) | N5—C24—C23 | 105.86 (15) |
C5—C6—H6A | 120.9 | O1—C25—C26 | 122.87 (16) |
C7—C6—H6A | 120.9 | O1—C25—C30 | 116.98 (16) |
C6—C7—C2 | 120.47 (16) | C26—C25—C30 | 120.12 (16) |
C6—C7—C8 | 132.45 (17) | C27—C26—C25 | 120.16 (17) |
C2—C7—C8 | 106.99 (15) | C27—C26—H26A | 119.9 |
N2—C8—N1 | 122.25 (16) | C25—C26—H26A | 119.9 |
N2—C8—C7 | 130.40 (16) | C28—C27—C26 | 118.85 (17) |
N1—C8—C7 | 105.73 (14) | C28—C27—H27A | 120.6 |
N2—C9—N3 | 122.80 (16) | C26—C27—H27A | 120.6 |
N2—C9—C10 | 129.53 (17) | C29—C28—C27 | 121.77 (17) |
N3—C9—C10 | 106.11 (15) | C29—C28—N7 | 118.99 (16) |
C11—C10—C15 | 120.32 (17) | C27—C28—N7 | 119.24 (16) |
C11—C10—C9 | 132.33 (17) | C28—C29—C30 | 119.24 (17) |
C15—C10—C9 | 107.16 (15) | C28—C29—H29A | 120.4 |
C12—C11—C10 | 117.79 (18) | C30—C29—H29A | 120.4 |
C12—C11—H11A | 121.1 | C29—C30—C25 | 119.78 (17) |
C10—C11—H11A | 121.1 | C29—C30—H30A | 120.1 |
C11—C12—C13 | 121.91 (18) | C25—C30—H30A | 120.1 |
C11—C12—H12A | 119.0 | O1—B1—N1 | 108.11 (15) |
C13—C12—H12A | 119.0 | O1—B1—N3 | 115.48 (15) |
C14—C13—C12 | 121.35 (18) | N1—B1—N3 | 104.11 (14) |
C14—C13—H13A | 119.3 | O1—B1—N5 | 119.21 (15) |
C12—C13—H13A | 119.3 | N1—B1—N5 | 104.25 (14) |
C13—C14—C15 | 117.54 (17) | N3—B1—N5 | 104.16 (14) |
Experimental details
Crystal data | |
Chemical formula | C30H16BN7O3 |
Mr | 533.31 |
Crystal system, space group | Monoclinic, P21/n |
Temperature (K) | 150 |
a, b, c (Å) | 15.6597 (4), 8.2959 (1), 19.5409 (5) |
β (°) | 110.3060 (9) |
V (Å3) | 2380.82 (9) |
Z | 4 |
Radiation type | Mo Kα |
µ (mm−1) | 0.10 |
Crystal size (mm) | 0.40 × 0.26 × 0.20 |
Data collection | |
Diffractometer | Nonius KappaCCD |
Absorption correction | Multi-scan (SORTAV; Blessing, 1995) |
Tmin, Tmax | 0.788, 1.002 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 19982, 5413, 3646 |
Rint | 0.052 |
(sin θ/λ)max (Å−1) | 0.649 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.049, 0.141, 1.03 |
No. of reflections | 5413 |
No. of parameters | 371 |
H-atom treatment | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 0.27, −0.33 |
Computer programs: COLLECT (Nonius, 2002), DENZO-SMN (Otwinowski & Minor, 1997), SIR92 (Altomare et al., 1994), SHELXTL (Sheldrick, 2008), PLATON (Spek, 2009).
Footnotes
1Electron withdrawing groups in the para position of the phenoxy molecular fragment. Part 2. For Part 1, see Paton et al. (2010a).
Acknowledgements
We wish to acknowledge funding for this research from the Natural Sciences and Engineering Research Council (NSERC) of Canada.
References
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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.
We report the crystal structure of 4-nitrophenoxy-boronsubphthalocyanine (NO2PhO-BsubPcs), which possesses an electron withdrawing group in the para position of the phenoxy molecular fragment. We have recently reported a study of the crystal structures of a series of para-substituted phenoxy-BsubPcs wherein most of the substituents were electron donating (alkyl, Paton et al., 2010). Contained within the study was 4-fluorophenoxy-BsubPcs (FPhO-BsubPcs). While fluorine is moderately electron withdrawing we did not observe any difference in its crystal structure compared to the baseline phenoxy-BsubPcs. We have since reported the structure of a derivative with a stronger electron withdrawing group, 4-acetylphenoxy-BsubPcs. (Paton et al., 2011) This structure was only slightly different from the typical FPhO-BsubPcs crystal packing motif. We synthesized the title compound as the next derivative in a series studying the effects of electron withdrawing groups on related compounds.
The title compound was prepared by a method described previously (Paton et al., 2010; Claessens et al., 2003), in which chloro-boronsubphthalocyanine (Cl-BsubPcs) is reacted with an excess of the appropriate phenol until substitution is complete. Further details are given in the experimental sections which accompany this article.
The molecular structure of the title compound obtained from benzene-heptane diffusion crystallization is shown in Fig. 1. The compound shows the expected bowl shape of the BsubPcs ligand. The boron-oxygen-carbon (B—O—C) angle in the molecule is 124.56 (14)°, which differs significantly from both the experimental (115.2 (2)°) and computational gas-phase (ca 115°) values of B—O—C angle for the typical phenoxy derivatized FPhO-BsubPcs (Paton et al., 2010). Examining the torsion angle between the boron, oxygen, and the first two carbon atoms on the phenoxy substituent (B—O—C—C) gives values of -44.7 (3)°. In contrast, the angle associated with FPhO-BsubPcs is -91.0 (2)° relative to the plane of the BsubPcs fragment (Paton et al., 2010).
The crystal structure of NO2PhO-BsubPcs (Fig. 2) shows pairs of BsubPcs fragments associated through a π-interaction separated by a centroid-to-centroid distance of 3.5430 (11) Å. These pairs of molecules form one-dimensional rows aligned with the b axis. The π-interaction creating the pairs is between two sets of BsubPcs fragments whose ring planes are not perfectly parallel; the planes of the two rings (C9/C10/C11/C12/C13/C14/C15 and C9/C10/C15/C16/N3 on neighbouring molecules) are at an angle of 1.44 (10)°.