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The title compound crystallizes in the same space group (P21/c) as the previously reported dihydrate form, but with two formula units per asymmetric unit instead of one. In the crystal, the components are linked into a three-dimensional network by classical inter­molecular O—H...O and N—H...O hydrogen bonds and π–π stacking inter­actions.

Supporting information

cif

Crystallographic Information File (CIF) https://doi.org/10.1107/S2056989022010167/zv2018sup1.cif
Contains datablock I

hkl

Structure factor file (CIF format) https://doi.org/10.1107/S2056989022010167/zv2018Isup2.hkl
Contains datablock I

cml

Chemical Markup Language (CML) file https://doi.org/10.1107/S2056989022010167/zv2018Isup3.cml
Supplementary material

CCDC reference: 2215274

Key indicators

Structure: I
  • Single-crystal X-ray study
  • T = 298 K
  • Mean [sigma](C-C) = 0.002 Å
  • R factor = 0.048
  • wR factor = 0.142
  • Data-to-parameter ratio = 13.3

checkCIF/PLATON results

No syntax errors found



Alert level C PLAT250_ALERT_2_C Large U3/U1 Ratio for Average U(i,j) Tensor .... 2.1 Note PLAT790_ALERT_4_C Centre of Gravity not Within Unit Cell: Resd. # 1 Note C8 H8 N O4 PLAT911_ALERT_3_C Missing FCF Refl Between Thmin & STh/L= 0.600 2 Report
Alert level G PLAT432_ALERT_2_G Short Inter X...Y Contact O2B ..N2B . 2.86 Ang. x,1+y,z = 1_565 Check PLAT432_ALERT_2_G Short Inter X...Y Contact O2B ..C8A . 3.01 Ang. x,-1+y,z = 1_545 Check PLAT432_ALERT_2_G Short Inter X...Y Contact O4A ..N2A . 2.84 Ang. 2-x,-1/2+y,1/2-z = 2_745 Check PLAT480_ALERT_4_G Long H...A H-Bond Reported H2WB ..O7B . 2.79 Ang. PLAT480_ALERT_4_G Long H...A H-Bond Reported H1BC ..O2W . 2.64 Ang. PLAT720_ALERT_4_G Number of Unusual/Non-Standard Labels .......... 12 Note PLAT790_ALERT_4_G Centre of Gravity not Within Unit Cell: Resd. # 3 Note N O3 PLAT910_ALERT_3_G Missing # of FCF Reflection(s) Below Theta(Min). 1 Note PLAT933_ALERT_2_G Number of HKL-OMIT Records in Embedded .res File 2 Note PLAT941_ALERT_3_G Average HKL Measurement Multiplicity ........... 4.3 Low PLAT978_ALERT_2_G Number C-C Bonds with Positive Residual Density. 7 Info
0 ALERT level A = Most likely a serious problem - resolve or explain 0 ALERT level B = A potentially serious problem, consider carefully 3 ALERT level C = Check. Ensure it is not caused by an omission or oversight 11 ALERT level G = General information/check it is not something unexpected 0 ALERT type 1 CIF construction/syntax error, inconsistent or missing data 6 ALERT type 2 Indicator that the structure model may be wrong or deficient 3 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

Computing details top

Data collection: BIS (Bruker, 2014), APEX2 (Bruker, 2014); cell refinement: SAINT (Bruker, 2014); data reduction: SAINT (Bruker, 2014); program(s) used to solve structure: SHELXT (Sheldrick, 2015a); program(s) used to refine structure: SHELXL2018/3 (Sheldrick, 2015b); molecular graphics: OLEX2 (Dolomanov et al., 2009); software used to prepare material for publication: OLEX2 (Dolomanov et al., 2009).

3,5-Dicarboxyanilinium nitrate monohydrate top
Crystal data top
C8H8NO4+·NO3·H2OF(000) = 1088
Mr = 262.18Dx = 1.633 Mg m3
Monoclinic, P21/cMo Kα radiation, λ = 0.71073 Å
a = 14.7026 (4) ÅCell parameters from 5578 reflections
b = 8.5449 (2) Åθ = 2.4–28.9°
c = 16.9929 (4) ŵ = 0.15 mm1
β = 92.800 (2)°T = 298 K
V = 2132.31 (9) Å3Plate, colorless
Z = 80.14 × 0.12 × 0.1 mm
Data collection top
Bruker APEXII CCD
diffractometer
3653 reflections with I > 2σ(I)
Mirror optics monochromatorRint = 0.069
φ and ω scansθmax = 27.5°, θmin = 2.4°
Absorption correction: multi-scan
(SADABS; Bruker, 2014)
h = 1819
Tmin = 0.627, Tmax = 0.746k = 1110
20897 measured reflectionsl = 2220
4881 independent reflections
Refinement top
Refinement on F2Primary atom site location: heavy-atom method
Least-squares matrix: fullSecondary atom site location: other
R[F2 > 2σ(F2)] = 0.048Hydrogen site location: mixed
wR(F2) = 0.142H atoms treated by a mixture of independent and constrained refinement
S = 1.02 w = 1/[σ2(Fo2) + (0.0742P)2 + 0.5757P]
where P = (Fo2 + 2Fc2)/3
4881 reflections(Δ/σ)max = 0.001
368 parametersΔρmax = 0.38 e Å3
0 restraintsΔρmin = 0.36 e Å3
Special details top

Geometry. All esds (except the esd in the dihedral angle between two l.s. planes) are estimated using the full covariance matrix. The cell esds are taken into account individually in the estimation of esds in distances, angles and torsion angles; correlations between esds in cell parameters are only used when they are defined by crystal symmetry. An approximate (isotropic) treatment of cell esds is used for estimating esds involving l.s. planes.

Fractional atomic coordinates and isotropic or equivalent isotropic displacement parameters (Å2) top
xyzUiso*/Ueq
N1B0.67893 (13)0.3682 (2)0.28611 (10)0.0301 (4)
O1A0.82519 (13)1.17198 (18)0.43486 (9)0.0423 (4)
O2W0.58027 (15)0.0690 (2)0.65998 (12)0.0603 (5)
H2WA0.546 (3)0.012 (5)0.622 (2)0.090*
H2WB0.615 (3)0.127 (4)0.631 (2)0.090*
O3A0.97439 (10)1.86406 (16)0.43414 (8)0.0346 (3)
H3A0.9913 (18)1.922 (3)0.3898 (16)0.052*
O2A0.78909 (12)1.14271 (17)0.56010 (9)0.0452 (4)
O4A0.92628 (11)1.69085 (17)0.34332 (8)0.0396 (4)
O3B0.56209 (12)0.38877 (19)0.62141 (9)0.0465 (4)
H3B0.539 (2)0.324 (4)0.6536 (18)0.070*
O1B0.70854 (12)0.86590 (18)0.53880 (9)0.0418 (4)
O4B0.55015 (15)0.17909 (18)0.54420 (10)0.0574 (5)
O2B0.75437 (11)0.88596 (16)0.41625 (8)0.0362 (3)
O6A1.10763 (13)1.85507 (18)0.24130 (10)0.0503 (4)
O5A1.03844 (10)2.02758 (17)0.30967 (9)0.0380 (4)
O7A1.18270 (10)2.05003 (17)0.29317 (9)0.0389 (4)
O1W0.49992 (10)0.22720 (19)0.73709 (9)0.0357 (3)
H1WA0.4800 (19)0.284 (3)0.7699 (16)0.053*
H1WB0.4622 (19)0.147 (3)0.7312 (15)0.053*
O7B0.70536 (11)0.14901 (17)0.22552 (10)0.0450 (4)
O5B0.76172 (10)0.07156 (17)0.26536 (9)0.0403 (4)
O6B0.62322 (10)0.01340 (18)0.28938 (9)0.0410 (4)
N2A1.11052 (12)1.97532 (18)0.28112 (9)0.0295 (4)
N2B0.69618 (11)0.02251 (18)0.25969 (10)0.0299 (4)
C1A0.82076 (13)1.2200 (2)0.50630 (11)0.0254 (4)
C2A0.85560 (12)1.3807 (2)0.52255 (10)0.0225 (4)
C3A0.88063 (11)1.4777 (2)0.46159 (10)0.0218 (4)
H3AA0.8769491.4416620.4098860.026*
C4A0.91116 (11)1.62859 (19)0.47816 (10)0.0206 (3)
C8A0.93717 (12)1.7299 (2)0.41105 (10)0.0244 (4)
C5A0.91825 (12)1.68168 (19)0.55568 (10)0.0219 (3)
H5A0.9392051.7822500.5670400.026*
C6A0.89382 (11)1.5833 (2)0.61539 (10)0.0212 (3)
N1A0.90040 (13)1.6379 (2)0.69669 (9)0.0267 (3)
C7A0.86173 (12)1.4334 (2)0.59991 (10)0.0230 (4)
H7A0.8445371.3690370.6407450.028*
C8B0.57193 (14)0.3132 (2)0.55560 (12)0.0321 (4)
C4B0.61297 (13)0.4121 (2)0.49363 (11)0.0268 (4)
C3B0.64094 (13)0.5653 (2)0.51020 (11)0.0261 (4)
H3BA0.6336180.6078880.5598530.031*
C2B0.67981 (12)0.6536 (2)0.45190 (11)0.0236 (4)
C1B0.71606 (12)0.8134 (2)0.46854 (11)0.0254 (4)
C7B0.69130 (12)0.5897 (2)0.37756 (10)0.0244 (4)
H7B0.7167290.6489050.3382900.029*
C6B0.66436 (12)0.4375 (2)0.36321 (10)0.0240 (4)
C5B0.62522 (13)0.3476 (2)0.42002 (11)0.0271 (4)
H5B0.6073140.2452260.4090390.033*
H1B0.7317 (17)0.954 (3)0.5397 (14)0.041*
H1BA0.7200 (16)0.426 (3)0.2570 (13)0.033*
H1BB0.7054 (15)0.273 (3)0.2872 (13)0.033*
H1BC0.6263 (18)0.350 (3)0.2638 (13)0.033*
H1AA0.9473 (17)1.618 (3)0.7214 (13)0.033*
H1AB0.8549 (16)1.593 (3)0.7224 (13)0.033*
H1AC0.8850 (15)1.734 (3)0.7023 (13)0.033*
H1A0.804 (3)1.090 (5)0.433 (2)0.087 (12)*
Atomic displacement parameters (Å2) top
U11U22U33U12U13U23
N1B0.0342 (9)0.0260 (9)0.0305 (9)0.0018 (7)0.0048 (7)0.0073 (7)
O1A0.0685 (11)0.0235 (8)0.0348 (8)0.0118 (7)0.0009 (7)0.0098 (6)
O2W0.0750 (14)0.0476 (11)0.0614 (12)0.0152 (9)0.0353 (10)0.0080 (9)
O3A0.0509 (9)0.0253 (7)0.0279 (7)0.0142 (6)0.0051 (6)0.0020 (6)
O2A0.0679 (11)0.0298 (8)0.0381 (8)0.0217 (7)0.0046 (7)0.0034 (6)
O4A0.0628 (10)0.0343 (8)0.0219 (7)0.0123 (7)0.0033 (6)0.0008 (6)
O3B0.0690 (11)0.0400 (9)0.0318 (8)0.0176 (8)0.0154 (7)0.0013 (7)
O1B0.0616 (10)0.0277 (8)0.0375 (8)0.0182 (7)0.0179 (7)0.0130 (6)
O4B0.0931 (14)0.0302 (9)0.0507 (10)0.0227 (8)0.0230 (9)0.0021 (7)
O2B0.0534 (9)0.0237 (7)0.0320 (7)0.0118 (6)0.0081 (6)0.0002 (5)
O6A0.0677 (12)0.0278 (8)0.0560 (10)0.0005 (7)0.0081 (8)0.0119 (7)
O5A0.0419 (8)0.0315 (8)0.0419 (8)0.0004 (6)0.0170 (6)0.0065 (6)
O7A0.0353 (8)0.0388 (8)0.0425 (9)0.0050 (6)0.0013 (6)0.0046 (6)
O1W0.0359 (8)0.0355 (8)0.0365 (8)0.0048 (6)0.0102 (6)0.0007 (6)
O7B0.0558 (10)0.0263 (8)0.0541 (10)0.0004 (7)0.0153 (8)0.0108 (7)
O5B0.0417 (9)0.0335 (8)0.0467 (9)0.0101 (6)0.0127 (7)0.0036 (6)
O6B0.0338 (8)0.0393 (8)0.0508 (9)0.0046 (6)0.0117 (7)0.0038 (7)
N2A0.0394 (9)0.0220 (8)0.0273 (8)0.0009 (7)0.0050 (6)0.0059 (6)
N2B0.0354 (9)0.0247 (8)0.0298 (8)0.0019 (7)0.0050 (6)0.0011 (6)
C1A0.0306 (9)0.0202 (9)0.0254 (9)0.0024 (7)0.0009 (7)0.0008 (7)
C2A0.0251 (9)0.0176 (8)0.0248 (9)0.0016 (6)0.0005 (6)0.0004 (6)
C3A0.0233 (8)0.0218 (8)0.0202 (8)0.0007 (6)0.0006 (6)0.0023 (6)
C4A0.0219 (8)0.0199 (8)0.0202 (8)0.0008 (6)0.0012 (6)0.0019 (6)
C8A0.0286 (9)0.0210 (9)0.0236 (9)0.0010 (7)0.0022 (7)0.0024 (7)
C5A0.0253 (9)0.0166 (8)0.0236 (8)0.0017 (6)0.0007 (6)0.0017 (6)
C6A0.0229 (8)0.0219 (8)0.0188 (8)0.0020 (6)0.0013 (6)0.0025 (6)
N1A0.0345 (9)0.0258 (8)0.0200 (8)0.0003 (7)0.0030 (6)0.0031 (6)
C7A0.0267 (9)0.0198 (8)0.0227 (8)0.0010 (7)0.0032 (7)0.0011 (6)
C8B0.0361 (11)0.0265 (10)0.0339 (10)0.0055 (8)0.0040 (8)0.0051 (8)
C4B0.0291 (9)0.0212 (9)0.0303 (9)0.0025 (7)0.0017 (7)0.0032 (7)
C3B0.0282 (9)0.0232 (9)0.0273 (9)0.0019 (7)0.0038 (7)0.0018 (7)
C2B0.0230 (9)0.0189 (8)0.0288 (9)0.0012 (7)0.0010 (7)0.0017 (7)
C1B0.0281 (9)0.0206 (8)0.0277 (9)0.0000 (7)0.0027 (7)0.0018 (7)
C7B0.0280 (9)0.0189 (9)0.0264 (9)0.0001 (7)0.0034 (7)0.0010 (7)
C6B0.0247 (9)0.0219 (9)0.0254 (9)0.0004 (7)0.0003 (7)0.0033 (7)
C5B0.0300 (9)0.0187 (8)0.0324 (10)0.0045 (7)0.0005 (7)0.0009 (7)
Geometric parameters (Å, º) top
C6A—N1A1.457 (2)O6B—N2B1.246 (2)
N1B—H1BA0.94 (2)C1A—C2A1.486 (2)
N1B—H1BB0.90 (2)C2A—C3A1.390 (2)
N1B—H1BC0.86 (3)C2A—C7A1.388 (2)
O1A—C1A1.286 (2)C3A—H3AA0.9300
O2A—C1A1.237 (2)C3A—C4A1.390 (2)
O1A—H1A0.77 (4)C4A—C8A1.496 (2)
O2W—H2WA0.93 (4)C4A—C5A1.392 (2)
O2W—H2WB0.88 (4)C5A—H5A0.9300
O3A—H3A0.94 (3)C5A—C6A1.379 (2)
O3A—C8A1.322 (2)C6A—C7A1.386 (2)
O4A—C8A1.202 (2)N1A—H1AA0.81 (3)
N1B—C6B1.463 (2)N1A—H1AB0.90 (2)
O1B—C1B1.285 (2)N1A—H1AC0.86 (2)
O2B—C1B1.241 (2)C7A—H7A0.9300
O3B—H3B0.86 (3)C8B—C4B1.499 (2)
O3B—C8B1.305 (2)C4B—C3B1.397 (3)
O1B—H1B0.82 (3)C4B—C5B1.386 (3)
O4B—C8B1.203 (2)C3B—H3BA0.9300
O6A—N2A1.230 (2)C3B—C2B1.390 (2)
O5A—N2A1.268 (2)C2B—C1B1.488 (2)
O7A—N2A1.247 (2)C2B—C7B1.394 (2)
O1W—H1WA0.81 (3)C7B—H7B0.9300
O1W—H1WB0.88 (3)C7B—C6B1.378 (2)
O7B—N2B1.237 (2)C6B—C5B1.381 (2)
O5B—N2B1.255 (2)C5B—H5B0.9300
C6B—N1B—H1BA112.8 (13)C5A—C6A—N1A119.66 (15)
C6B—N1B—H1BB115.3 (14)C5A—C6A—C7A121.50 (15)
C6B—N1B—H1BC107.5 (15)C7A—C6A—N1A118.84 (15)
H1BA—N1B—H1BB101.1 (19)C6A—N1A—H1AA116.1 (16)
H1BA—N1B—H1BC117 (2)C6A—N1A—H1AB107.9 (14)
H1BB—N1B—H1BC103 (2)C6A—N1A—H1AC114.0 (15)
C1A—O1A—H1A107 (3)H1AA—N1A—H1AB107 (2)
H2WA—O2W—H2WB103 (3)H1AA—N1A—H1AC112 (2)
C8A—O3A—H3A109.6 (16)H1AB—N1A—H1AC98 (2)
C8B—O3B—H3B107 (2)C2A—C7A—H7A120.5
C1B—O1B—H1B106.3 (17)C6A—C7A—C2A119.04 (16)
H1WA—O1W—H1WB107 (3)C6A—C7A—H7A120.5
O6A—N2A—O5A119.84 (18)O3B—C8B—C4B112.86 (16)
O6A—N2A—O7A121.63 (17)O2B—C1B—O1B123.59 (17)
O7A—N2A—O5A118.51 (16)O4B—C8B—O3B124.69 (18)
O7B—N2B—O5B119.63 (16)O4B—C8B—C4B122.45 (18)
O7B—N2B—O6B121.39 (17)C3B—C4B—C8B120.73 (17)
O6B—N2B—O5B118.97 (16)C5B—C4B—C8B118.98 (16)
O1A—C1A—C2A115.93 (16)C5B—C4B—C3B120.27 (16)
O2A—C1A—O1A124.42 (17)C4B—C3B—H3BA120.3
O2A—C1A—C2A119.64 (16)C2B—C3B—C4B119.49 (17)
C3A—C2A—C1A120.90 (16)C2B—C3B—H3BA120.3
C7A—C2A—C1A118.78 (15)C3B—C2B—C1B121.24 (16)
C7A—C2A—C3A120.32 (16)C3B—C2B—C7B120.38 (16)
C2A—C3A—H3AA120.1C7B—C2B—C1B118.24 (16)
C4A—C3A—C2A119.79 (15)O1B—C1B—C2B116.78 (16)
C4A—C3A—H3AA120.1O2B—C1B—C2B119.57 (16)
C3A—C4A—C8A118.33 (15)C2B—C7B—H7B120.6
C3A—C4A—C5A120.17 (15)C6B—C7B—C2B118.89 (16)
C5A—C4A—C8A121.49 (15)C6B—C7B—H7B120.6
O3A—C8A—C4A113.16 (15)C7B—C6B—N1B119.14 (16)
O4A—C8A—O3A124.00 (16)C7B—C6B—C5B121.83 (16)
O4A—C8A—C4A122.84 (16)C5B—C6B—N1B119.03 (16)
C4A—C5A—H5A120.4C4B—C5B—H5B120.4
C6A—C5A—C4A119.17 (15)C6B—C5B—C4B119.13 (16)
C6A—C5A—H5A120.4C6B—C5B—H5B120.4
N1B—C6B—C5B—C4B178.76 (17)C5A—C4A—C8A—O3A6.0 (2)
O1A—C1A—C2A—C3A7.5 (3)C5A—C4A—C8A—O4A175.09 (18)
O1A—C1A—C2A—C7A173.26 (17)C5A—C6A—C7A—C2A1.1 (3)
O2A—C1A—C2A—C3A171.65 (18)N1A—C6A—C7A—C2A179.81 (16)
O2A—C1A—C2A—C7A7.6 (3)C7A—C2A—C3A—C4A0.6 (3)
O3B—C8B—C4B—C3B3.4 (3)C8B—C4B—C3B—C2B179.20 (17)
O3B—C8B—C4B—C5B178.43 (18)C8B—C4B—C5B—C6B178.95 (17)
O4B—C8B—C4B—C3B177.3 (2)C4B—C3B—C2B—C1B175.94 (17)
O4B—C8B—C4B—C5B0.9 (3)C4B—C3B—C2B—C7B0.3 (3)
C1A—C2A—C3A—C4A178.62 (16)C3B—C4B—C5B—C6B0.8 (3)
C1A—C2A—C7A—C6A179.75 (16)C3B—C2B—C1B—O1B0.9 (3)
C2A—C3A—C4A—C8A179.76 (16)C3B—C2B—C1B—O2B176.44 (18)
C2A—C3A—C4A—C5A1.2 (3)C3B—C2B—C7B—C6B0.6 (3)
C3A—C2A—C7A—C6A0.5 (3)C2B—C7B—C6B—N1B178.06 (17)
C3A—C4A—C8A—O3A173.07 (16)C2B—C7B—C6B—C5B0.9 (3)
C3A—C4A—C8A—O4A5.8 (3)C1B—C2B—C7B—C6B175.10 (16)
C3A—C4A—C5A—C6A0.6 (3)C7B—C2B—C1B—O1B176.57 (17)
C4A—C5A—C6A—N1A179.61 (16)C7B—C2B—C1B—O2B0.7 (3)
C4A—C5A—C6A—C7A0.5 (3)C7B—C6B—C5B—C4B0.2 (3)
C8A—C4A—C5A—C6A179.67 (16)C5B—C4B—C3B—C2B1.1 (3)
Hydrogen-bond geometry (Å, º) top
D—H···AD—HH···AD···AD—H···A
O2W—H2WA···O4B0.93 (4)2.11 (4)2.911 (3)143 (3)
O2W—H2WB···O1Bi0.88 (4)2.14 (4)2.913 (2)147 (3)
O2W—H2WB···O7Bii0.88 (4)2.79 (4)3.198 (3)110 (3)
O3A—H3A···O5A0.94 (3)1.80 (3)2.7399 (19)173 (2)
O3B—H3B···O1W0.86 (3)1.76 (3)2.604 (2)165 (3)
O1W—H1WA···O2Wiii0.81 (3)1.97 (3)2.772 (2)173 (3)
O1W—H1WB···O7Biv0.88 (3)2.60 (3)3.185 (2)124 (2)
O1W—H1WB···O6Biv0.88 (3)1.88 (3)2.762 (2)175 (3)
C7A—H7A···O5Bv0.932.543.236 (2)131
N1B—H1BA···O6Avi0.94 (2)2.60 (2)3.197 (3)121.7 (17)
N1B—H1BA···O7Avi0.94 (2)2.01 (2)2.938 (2)173 (2)
N1B—H1BB···O5B0.90 (2)1.96 (2)2.842 (2)168 (2)
N1B—H1BB···O6B0.90 (2)2.53 (2)3.142 (2)125.9 (18)
N1B—H1BC···O2Wvii0.86 (3)2.64 (2)3.056 (3)111.2 (17)
N1B—H1BC···O1Wvii0.86 (3)2.00 (3)2.841 (2)165 (2)
N1A—H1AA···O6Aviii0.81 (3)2.38 (3)3.104 (3)150 (2)
N1A—H1AA···O5Aviii0.81 (3)2.32 (3)3.070 (2)154 (2)
N1A—H1AB···O7Bv0.90 (2)2.25 (2)2.934 (2)132.1 (18)
N1A—H1AB···O5Bv0.90 (2)2.12 (2)2.992 (2)162.9 (19)
N1A—H1AC···O4Aviii0.86 (2)2.53 (2)2.899 (2)107.3 (17)
N1A—H1AC···O5Aix0.86 (2)2.34 (2)3.000 (2)133.8 (19)
N1A—H1AC···O7Aix0.86 (2)2.10 (3)2.942 (2)167 (2)
O1A—H1A···O2B0.77 (4)1.91 (4)2.669 (2)174 (4)
O1B—H1B···O2A0.82 (3)1.85 (3)2.662 (2)170 (3)
Symmetry codes: (i) x, y1, z; (ii) x, y1/2, z+1/2; (iii) x+1, y+1/2, z+3/2; (iv) x+1, y, z+1; (v) x, y+3/2, z+1/2; (vi) x+2, y3/2, z+1/2; (vii) x, y+1/2, z1/2; (viii) x, y+7/2, z+1/2; (ix) x+2, y+4, z+1.
 

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