Bis(2,6-dihy­droxy­benzoato-κ2O1,O1′)(nitrato-κ2O,O′)bis­(1,10-phenanthroline-κ2N,N′)praseodymium(III)

Wang, C.; Gu, X.; Wang, X.; Jin, H.

doi:10.1107/S1600536810049767

metal-organic compounds

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ISSN: 2056-9890

Volume 67| Part 1| January 2011| Page m5

https://doi.org/10.1107/S1600536810049767

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Bis(2,6-dihydroxybenzoato-κ²O¹,O^1′)(nitrato-κ²O,O′)bis(1,10-phenanthroline-κ²N,N′)praseodymium(III)

Chiya Wang,^a Xiaojin Gu,^a Xinqing Wang ^a and Hongxiao Jin ^a ^*

^aCollege of Materials Science and Engineering, China Jiliang University, Hangzhou 310018, People's Republic of China
^*Correspondence e-mail: jin_hongxiao@yahoo.com.cn

(Received 11 November 2010; accepted 29 November 2010; online 4 December 2010)

The mononuclear title complex, [Pr(C₇H₅O₃)₂(NO₃)(C₁₂H₈N₂)₂], is isostructural with related complexes of other lanthanides. The Pr(III) atom is in a pseudo-bicapped square-antiprismatic geometry, formed by four N atoms from two chelating 1,10-phenanthroline (phen) ligands and six O atoms, four from two 2,6-dihydroxybenzoate (DHB) ligands and the other two from nitrate anions. π–π stacking interactions between the phen and DHB ligands [centroid–centroid distances = 3.518 (2) and 3.778 (2) Å] and the phen and phen ligands [face-to-face separation = 3.427 (6) Å] of adjacent complexes stabilize the crystal structure. Intramolecular O—H⋯O hydrogen bonds are observed in the DHB ligands.

Related literature

For the background and a related structure, see: Zheng et al. (2010 ).

Experimental

Crystal data

[Pr(C₇H₅O₃)₂(NO₃)(C₁₂H₈N₂)₂]
M_r = 869.55
Monoclinic, P 2₁ /c
a = 11.2738 (2) Å
b = 26.8015 (5) Å
c = 14.3886 (4) Å
β = 127.934 (1)°
V = 3429.02 (13) Å³
Z = 4
Mo Kα radiation
μ = 1.49 mm⁻¹
T = 298 K
0.50 × 0.42 × 0.40 mm

Data collection

Oxford Diffraction Gemini S Ultra diffractometer
Absorption correction: multi-scan (ABSPACK in CrysAlis PRO RED; Oxford Diffraction, 2006 $[Oxford Diffraction (2006). CrysAlis PRO CCD and CrysAlis PRO RED. Oxford Diffraction Ltd, Abingdon, England.]$ ) T_min = 0.522, T_max = 0.586
28864 measured reflections
6985 independent reflections
6611 reflections with I > 2σ(I)
R_int = 0.023

Refinement

R[F² > 2σ(F²)] = 0.035
wR(F²) = 0.075
S = 1.23
6985 reflections
500 parameters
H-atom parameters constrained
Δρ_max = 0.66 e Å⁻³
Δρ_min = −1.21 e Å⁻³

Table 1
Hydrogen-bond geometry (Å, °)

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
O8—H38⋯O6	0.82	1.83	2.561 (4)	148
O7—H33⋯O5	0.82	1.87	2.592 (3)	147
O4—H31⋯O2	0.82	1.86	2.586 (4)	147
O3—H27⋯O1	0.82	1.85	2.577 (4)	147

Data collection: CrysAlis PRO CCD (Oxford Diffraction, 2006 $[Oxford Diffraction (2006). CrysAlis PRO CCD and CrysAlis PRO RED. Oxford Diffraction Ltd, Abingdon, England.]$ ); cell refinement: CrysAlis PRO CCD; data reduction: CrysAlis PRO RED (Oxford Diffraction, 2006 $[Oxford Diffraction (2006). CrysAlis PRO CCD and CrysAlis PRO RED. Oxford Diffraction Ltd, Abingdon, England.]$ ); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008 ); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: DIAMOND (Brandenburg & Berndt, 1999 ); software used to prepare material for publication: SHELXL97.

Supporting information

Crystal structure: contains datablocks I, global. DOI: https://doi.org/10.1107/S1600536810049767/fj2366sup1.cif

Structure factors: contains datablock I. DOI: https://doi.org/10.1107/S1600536810049767/fj2366Isup2.hkl

checkCIF report

Comment top

The description of the structure of the title compound is part of a series of papers on mononuclear complexes of the type [Ln(C₁₂H₈N₂)₂(C₇H₈O₃)₂ (NO₃)], with Ln = Ce, Pr (this publication), Sm, Eu, and Dy respectively. All five compounds are also isostructural to the previously reported Nd complex (Zheng et al. 2010). The background to this study is given in previous paper by Zheng et al. (2010).

Related literature top

For the background and a related structure, see: Zheng et al. (2010).

Experimental top

Each reagent was commercially available and of analytical grade. Pr(NO₃)₃^.6H₂O (0.217 g, 0.5 mmol), 2, 6-dihydroxybenzoic acid (0.074 g 0.5 mmol), 1, 10-phenanthroline (0.090 g, 0.5 mmol) and NaHCO₃ (0.042 g, 0.5 mmol) were dissolved in water-ethanol solution (10 ml, 5:5). The solution was refluxed for 4 h, and filtered after cooling to room temperature. Yellow single crystals were obtained from the filtrate after 2 d.

Structure description top

For the background and a related structure, see: Zheng et al. (2010).

Computing details top

Data collection: CrysAlis PRO CCD (Oxford Diffraction, 2006); cell refinement: CrysAlis PRO CCD (Oxford Diffraction, 2006); data reduction: CrysAlis PRO RED (Oxford Diffraction, 2006); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: DIAMOND (Brandenburg & Berndt, 1999); software used to prepare material for publication: SHELXL97 (Sheldrick, 2008).

Figures top

Fig. 1. The molecular structure of title compound. Displacement ellipsoids are drawn at the 15% probablility level and H atoms are shown as small spheres of arbitraty radii. Some H atoms are omitted for clarity. Light orange lines show the intramolecular hygogen bonds.

Bis(2,6-dihydroxybenzoato-κ²O¹,O^1')(nitrato- κ²O,O')bis(1,10-phenanthroline- κ²N,N')praseodymium(III) top

Crystal data top

[Pr(C₇H₅O₃)₂(NO₃)(C₁₂H₈N₂)₂]	F(000) = 1744
M_r = 869.55	D_x = 1.684 Mg m⁻³
Monoclinic, P2₁/c	Mo Kα radiation, λ = 0.71073 Å
Hall symbol: -P 2ybc	Cell parameters from 18285 reflections
a = 11.2738 (2) Å	θ = 2.9–26.3°
b = 26.8015 (5) Å	µ = 1.49 mm⁻¹
c = 14.3886 (4) Å	T = 298 K
β = 127.934 (1)°	Block, yellow
V = 3429.02 (13) Å³	0.50 × 0.42 × 0.40 mm
Z = 4

Data collection top

Oxford Diffraction Gemini S Ultra diffractometer	6985 independent reflections
Radiation source: Enhance (Mo) X-ray Source	6611 reflections with I > 2σ(I)
Graphite monochromator	R_int = 0.023
Detector resolution: 15.9149 pixels mm^-1	θ_max = 26.4°, θ_min = 2.9°
ω scans	h = −14→13
Absorption correction: multi-scan (ABSPACK in CrysAlis PRO RED; Oxford Diffraction, 2006)	k = −33→33
T_min = 0.522, T_max = 0.586	l = −17→17
28864 measured reflections

Refinement top

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) = 0.075	H-atom parameters constrained
S = 1.23	w = 1/[σ²(F_o²) + (0.0218P)² + 4.6197P] where P = (F_o² + 2F_c²)/3
6985 reflections	(Δ/σ)_max = 0.005
500 parameters	Δρ_max = 0.66 e Å⁻³
0 restraints	Δρ_min = −1.21 e Å⁻³

Crystal data top

[Pr(C₇H₅O₃)₂(NO₃)(C₁₂H₈N₂)₂]	V = 3429.02 (13) Å³
M_r = 869.55	Z = 4
Monoclinic, P2₁/c	Mo Kα radiation
a = 11.2738 (2) Å	µ = 1.49 mm⁻¹
b = 26.8015 (5) Å	T = 298 K
c = 14.3886 (4) Å	0.50 × 0.42 × 0.40 mm
β = 127.934 (1)°

Data collection top

Oxford Diffraction Gemini S Ultra diffractometer	6985 independent reflections
Absorption correction: multi-scan (ABSPACK in CrysAlis PRO RED; Oxford Diffraction, 2006)	6611 reflections with I > 2σ(I)
T_min = 0.522, T_max = 0.586	R_int = 0.023
28864 measured reflections

Refinement top

R[F² > 2σ(F²)] = 0.035	0 restraints
wR(F²) = 0.075	H-atom parameters constrained
S = 1.23	Δρ_max = 0.66 e Å⁻³
6985 reflections	Δρ_min = −1.21 e Å⁻³
500 parameters

Special details top

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.

Fractional atomic coordinates and isotropic or equivalent isotropic displacement parameters (Å²) top

	x	y	z	U_iso*/U_eq
Pr1	0.431931 (19)	0.861161 (6)	0.219170 (15)	0.02837 (6)
O1	0.3448 (3)	0.83800 (9)	0.0146 (2)	0.0418 (6)
O2	0.3881 (3)	0.91821 (9)	0.0538 (2)	0.0412 (6)
O3	0.2586 (4)	0.80310 (10)	−0.1851 (2)	0.0563 (7)
H27	0.2842	0.8022	−0.1180	0.084*
O4	0.3341 (5)	0.97961 (11)	−0.1068 (3)	0.0805 (11)
H31	0.3535	0.9709	−0.0441	0.121*
O5	0.1925 (3)	0.81083 (9)	0.1310 (2)	0.0408 (6)
O6	0.1610 (3)	0.89160 (10)	0.0956 (3)	0.0499 (7)
O7	−0.0202 (3)	0.75706 (10)	0.1003 (3)	0.0491 (6)
H33	0.0631	0.7630	0.1187	0.074*
O8	−0.0826 (4)	0.93463 (11)	0.0293 (3)	0.0704 (9)
H38	0.0025	0.9320	0.0489	0.106*
O9	0.3498 (3)	0.86921 (10)	0.3507 (3)	0.0495 (7)
O10	0.4607 (3)	0.79976 (9)	0.3731 (2)	0.0432 (6)
O11	0.3690 (4)	0.81302 (16)	0.4668 (3)	0.0820 (11)
N1	0.4773 (3)	0.95579 (10)	0.2922 (2)	0.0336 (6)
N2	0.6704 (3)	0.88251 (10)	0.4412 (2)	0.0321 (6)
N3	0.6879 (3)	0.86563 (10)	0.2479 (2)	0.0350 (6)
N4	0.5639 (3)	0.77687 (10)	0.2377 (2)	0.0326 (6)
N5	0.3932 (3)	0.82624 (13)	0.3990 (3)	0.0438 (7)
C1	0.3829 (4)	0.99163 (13)	0.2206 (3)	0.0431 (8)
H1	0.3078	0.9838	0.1419	0.052*
C2	0.3913 (5)	1.04074 (14)	0.2584 (4)	0.0523 (10)
H2	0.3233	1.0648	0.2054	0.063*
C3	0.4994 (5)	1.05269 (13)	0.3727 (4)	0.0481 (10)
H3	0.5056	1.0850	0.3989	0.058*
C4	0.6020 (4)	1.01638 (12)	0.4516 (3)	0.0381 (8)
C5	0.5852 (4)	0.96780 (11)	0.4067 (3)	0.0312 (7)
C6	0.7189 (5)	1.02637 (14)	0.5732 (4)	0.0480 (10)
H6	0.7291	1.0584	0.6023	0.058*
C7	0.8144 (5)	0.99044 (15)	0.6463 (4)	0.0481 (9)
H7	0.8895	0.9980	0.7252	0.058*
C8	0.8032 (4)	0.94058 (14)	0.6054 (3)	0.0383 (8)
C9	0.6881 (4)	0.92924 (12)	0.4856 (3)	0.0308 (7)
C10	0.9003 (4)	0.90184 (16)	0.6780 (3)	0.0460 (9)
H10	0.9763	0.9078	0.7576	0.055*
C11	0.8840 (4)	0.85562 (15)	0.6324 (3)	0.0439 (9)
H11	0.9493	0.8299	0.6797	0.053*
C12	0.7675 (4)	0.84786 (13)	0.5136 (3)	0.0383 (8)
H12	0.7572	0.8162	0.4831	0.046*
C13	0.7477 (4)	0.90873 (14)	0.2511 (3)	0.0448 (9)
H13	0.6896	0.9375	0.2278	0.054*
C14	0.8952 (5)	0.91295 (17)	0.2881 (4)	0.0541 (10)
H14	0.9332	0.9438	0.2882	0.065*
C15	0.9818 (5)	0.87108 (18)	0.3239 (4)	0.0546 (11)
H15	1.0806	0.8734	0.3506	0.066*
C16	0.9230 (4)	0.82471 (16)	0.3206 (3)	0.0430 (9)
C17	0.7734 (4)	0.82384 (13)	0.2813 (3)	0.0333 (7)
C18	0.7056 (4)	0.77663 (12)	0.2710 (3)	0.0313 (7)
C19	0.7863 (4)	0.73205 (14)	0.2954 (3)	0.0396 (8)
C20	0.9393 (5)	0.73500 (17)	0.3391 (3)	0.0510 (10)
H20	0.9946	0.7058	0.3591	0.061*
C21	1.0047 (4)	0.77876 (18)	0.3520 (3)	0.0537 (11)
H21	1.1049	0.7794	0.3818	0.064*
C22	0.7104 (5)	0.68711 (13)	0.2759 (3)	0.0467 (9)
H22	0.7584	0.6568	0.2880	0.056*
C23	0.5679 (5)	0.68766 (13)	0.2395 (3)	0.0464 (9)
H23	0.5168	0.6579	0.2254	0.056*
C24	0.4982 (4)	0.73345 (12)	0.2232 (3)	0.0394 (8)
H24	0.4015	0.7334	0.2012	0.047*
C25	0.3461 (4)	0.88195 (13)	−0.0172 (3)	0.0343 (7)
C26	0.2987 (4)	0.89075 (13)	−0.1371 (3)	0.0333 (7)
C27	0.2560 (4)	0.85057 (13)	−0.2155 (3)	0.0382 (8)
C28	0.2090 (4)	0.85953 (17)	−0.3286 (3)	0.0511 (10)
H28	0.1809	0.8331	−0.3802	0.061*
C29	0.2040 (5)	0.90735 (18)	−0.3640 (4)	0.0578 (11)
H29	0.1723	0.9129	−0.4400	0.069*
C30	0.2444 (6)	0.94733 (17)	−0.2904 (4)	0.0612 (12)
H30	0.2386	0.9796	−0.3169	0.073*
C31	0.2939 (5)	0.93947 (15)	−0.1767 (3)	0.0483 (9)
C32	0.1106 (4)	0.84976 (13)	0.0979 (3)	0.0374 (8)
C33	−0.0420 (4)	0.84599 (13)	0.0656 (3)	0.0357 (7)
C34	−0.0992 (4)	0.79969 (14)	0.0687 (3)	0.0384 (8)
C35	−0.2423 (4)	0.79683 (17)	0.0385 (3)	0.0462 (9)
H35	−0.2804	0.7664	0.0403	0.055*
C36	−0.3263 (4)	0.83955 (19)	0.0062 (3)	0.0544 (11)
H36	−0.4219	0.8374	−0.0140	0.065*
C37	−0.2749 (4)	0.88508 (18)	0.0026 (4)	0.0556 (11)
H37	−0.3349	0.9133	−0.0199	0.067*
C38	−0.1327 (4)	0.88879 (15)	0.0326 (3)	0.0470 (9)

Atomic displacement parameters (Å²) top

	U¹¹	U²²	U³³	U¹²	U¹³	U²³
Pr1	0.03009 (10)	0.02348 (9)	0.03471 (10)	0.00047 (7)	0.02153 (8)	−0.00019 (7)
O1	0.0506 (15)	0.0316 (13)	0.0398 (13)	−0.0010 (11)	0.0260 (13)	0.0012 (10)
O2	0.0526 (15)	0.0350 (13)	0.0384 (13)	−0.0035 (11)	0.0291 (13)	−0.0021 (11)
O3	0.0658 (19)	0.0384 (15)	0.0455 (16)	0.0007 (13)	0.0245 (16)	−0.0046 (12)
O4	0.145 (3)	0.0380 (16)	0.0548 (19)	−0.0181 (19)	0.060 (2)	−0.0043 (14)
O5	0.0312 (13)	0.0359 (13)	0.0541 (15)	0.0018 (10)	0.0255 (12)	−0.0002 (11)
O6	0.0384 (14)	0.0397 (14)	0.0680 (18)	0.0035 (11)	0.0309 (14)	0.0124 (13)
O7	0.0402 (15)	0.0440 (15)	0.0648 (18)	−0.0003 (11)	0.0331 (15)	0.0062 (13)
O8	0.0528 (19)	0.0512 (18)	0.097 (3)	0.0174 (14)	0.041 (2)	0.0164 (17)
O9	0.0594 (17)	0.0426 (15)	0.0621 (17)	0.0034 (12)	0.0452 (16)	−0.0062 (13)
O10	0.0492 (15)	0.0353 (13)	0.0512 (15)	0.0001 (11)	0.0339 (14)	0.0040 (11)
O11	0.080 (2)	0.130 (3)	0.0579 (19)	−0.004 (2)	0.053 (2)	0.014 (2)
N1	0.0397 (16)	0.0260 (13)	0.0405 (16)	0.0030 (11)	0.0275 (14)	0.0024 (11)
N2	0.0361 (15)	0.0279 (13)	0.0359 (14)	0.0033 (11)	0.0239 (13)	0.0001 (11)
N3	0.0370 (15)	0.0347 (15)	0.0382 (15)	−0.0068 (12)	0.0256 (14)	−0.0042 (12)
N4	0.0366 (15)	0.0267 (13)	0.0370 (15)	0.0009 (11)	0.0239 (13)	−0.0011 (11)
N5	0.0417 (18)	0.056 (2)	0.0371 (16)	−0.0116 (15)	0.0259 (15)	−0.0062 (14)
C1	0.052 (2)	0.0325 (18)	0.048 (2)	0.0077 (16)	0.0322 (19)	0.0068 (16)
C2	0.070 (3)	0.033 (2)	0.071 (3)	0.0123 (18)	0.052 (3)	0.0126 (19)
C3	0.072 (3)	0.0224 (17)	0.077 (3)	−0.0008 (17)	0.060 (3)	−0.0007 (17)
C4	0.052 (2)	0.0240 (16)	0.061 (2)	−0.0086 (14)	0.047 (2)	−0.0071 (15)
C5	0.0389 (18)	0.0241 (15)	0.0454 (19)	−0.0040 (13)	0.0334 (17)	−0.0021 (13)
C6	0.059 (2)	0.0352 (19)	0.069 (3)	−0.0190 (18)	0.049 (2)	−0.0199 (19)
C7	0.048 (2)	0.052 (2)	0.052 (2)	−0.0209 (19)	0.034 (2)	−0.0213 (19)
C8	0.0342 (18)	0.045 (2)	0.045 (2)	−0.0099 (15)	0.0291 (17)	−0.0084 (16)
C9	0.0318 (17)	0.0300 (16)	0.0412 (18)	−0.0031 (13)	0.0277 (16)	−0.0027 (13)
C10	0.0309 (19)	0.064 (3)	0.0381 (19)	−0.0055 (17)	0.0187 (17)	−0.0054 (18)
C11	0.0350 (19)	0.052 (2)	0.042 (2)	0.0072 (16)	0.0225 (17)	0.0063 (17)
C12	0.0385 (19)	0.0374 (18)	0.0414 (19)	0.0060 (14)	0.0258 (17)	0.0038 (15)
C13	0.052 (2)	0.040 (2)	0.050 (2)	−0.0100 (17)	0.035 (2)	−0.0045 (16)
C14	0.054 (3)	0.058 (3)	0.058 (2)	−0.027 (2)	0.039 (2)	−0.013 (2)
C15	0.037 (2)	0.083 (3)	0.047 (2)	−0.014 (2)	0.028 (2)	−0.010 (2)
C16	0.0339 (19)	0.066 (3)	0.0331 (18)	−0.0043 (17)	0.0225 (17)	−0.0065 (17)
C17	0.0335 (18)	0.0430 (19)	0.0280 (16)	−0.0008 (14)	0.0212 (15)	−0.0030 (14)
C18	0.0346 (17)	0.0341 (17)	0.0271 (15)	0.0049 (13)	0.0199 (15)	−0.0005 (13)
C19	0.047 (2)	0.045 (2)	0.0304 (17)	0.0140 (16)	0.0258 (17)	0.0041 (15)
C20	0.049 (2)	0.064 (3)	0.043 (2)	0.024 (2)	0.029 (2)	0.0064 (19)
C21	0.033 (2)	0.085 (3)	0.042 (2)	0.016 (2)	0.0219 (18)	0.002 (2)
C22	0.070 (3)	0.0305 (18)	0.044 (2)	0.0152 (17)	0.037 (2)	0.0032 (15)
C23	0.066 (3)	0.0278 (18)	0.049 (2)	0.0023 (17)	0.037 (2)	−0.0024 (15)
C24	0.044 (2)	0.0289 (17)	0.047 (2)	−0.0015 (15)	0.0286 (18)	−0.0022 (15)
C25	0.0275 (17)	0.0393 (18)	0.0350 (17)	0.0000 (14)	0.0186 (15)	0.0006 (14)
C26	0.0266 (16)	0.0375 (18)	0.0333 (17)	−0.0019 (13)	0.0173 (15)	−0.0013 (14)
C27	0.0269 (17)	0.042 (2)	0.0391 (19)	0.0002 (14)	0.0170 (16)	−0.0034 (15)
C28	0.043 (2)	0.067 (3)	0.039 (2)	0.0001 (19)	0.0234 (19)	−0.0097 (19)
C29	0.065 (3)	0.072 (3)	0.040 (2)	−0.012 (2)	0.034 (2)	−0.002 (2)
C30	0.084 (3)	0.055 (3)	0.048 (2)	−0.013 (2)	0.043 (3)	0.005 (2)
C31	0.058 (3)	0.045 (2)	0.041 (2)	−0.0086 (18)	0.031 (2)	−0.0009 (17)
C32	0.0316 (18)	0.042 (2)	0.0318 (17)	0.0048 (14)	0.0160 (15)	0.0016 (14)
C33	0.0274 (17)	0.047 (2)	0.0305 (17)	0.0041 (14)	0.0166 (15)	0.0006 (14)
C34	0.0292 (17)	0.053 (2)	0.0297 (17)	0.0000 (15)	0.0163 (15)	0.0006 (15)
C35	0.0327 (19)	0.071 (3)	0.0373 (19)	−0.0031 (18)	0.0227 (17)	0.0006 (18)
C36	0.030 (2)	0.094 (3)	0.041 (2)	0.003 (2)	0.0231 (18)	−0.001 (2)
C37	0.039 (2)	0.075 (3)	0.050 (2)	0.022 (2)	0.027 (2)	0.008 (2)
C38	0.041 (2)	0.051 (2)	0.045 (2)	0.0077 (17)	0.0239 (19)	0.0021 (17)

Geometric parameters (Å, º) top

Pr1—O1	2.542 (2)	C8—C9	1.414 (5)
Pr1—O6	2.546 (2)	C10—C11	1.360 (5)
Pr1—O5	2.551 (2)	C10—H10	0.9300
Pr1—O9	2.577 (3)	C11—C12	1.390 (5)
Pr1—O2	2.607 (2)	C11—H11	0.9300
Pr1—O10	2.615 (2)	C12—H12	0.9300
Pr1—N4	2.627 (3)	C13—C14	1.404 (5)
Pr1—N3	2.654 (3)	C13—H13	0.9300
Pr1—N1	2.672 (3)	C14—C15	1.364 (6)
Pr1—N2	2.683 (3)	C14—H14	0.9300
O1—C25	1.267 (4)	C15—C16	1.396 (6)
O2—C25	1.272 (4)	C15—H15	0.9300
O3—C27	1.340 (4)	C16—C17	1.411 (5)
O3—H27	0.8200	C16—C21	1.435 (6)
O4—C31	1.347 (5)	C17—C18	1.438 (5)
O4—H31	0.8200	C18—C19	1.409 (4)
O5—C32	1.276 (4)	C19—C22	1.402 (5)
O6—C32	1.267 (4)	C19—C20	1.429 (5)
O7—C34	1.344 (4)	C20—C21	1.336 (6)
O7—H33	0.8200	C20—H20	0.9300
O8—C38	1.365 (5)	C21—H21	0.9300
O8—H38	0.8200	C22—C23	1.349 (6)
O9—N5	1.277 (4)	C22—H22	0.9300
O10—N5	1.253 (4)	C23—C24	1.397 (5)
O11—N5	1.216 (4)	C23—H23	0.9300
N1—C1	1.330 (4)	C24—H24	0.9300
N1—C5	1.355 (4)	C25—C26	1.478 (5)
N2—C12	1.321 (4)	C26—C31	1.412 (5)
N2—C9	1.364 (4)	C26—C27	1.413 (5)
N3—C13	1.324 (4)	C27—C28	1.387 (5)
N3—C17	1.358 (4)	C28—C29	1.368 (6)
N4—C24	1.325 (4)	C28—H28	0.9300
N4—C18	1.357 (4)	C29—C30	1.373 (6)
C1—C2	1.405 (5)	C29—H29	0.9300
C1—H1	0.9300	C30—C31	1.382 (5)
C2—C3	1.353 (6)	C30—H30	0.9300
C2—H2	0.9300	C32—C33	1.484 (5)
C3—C4	1.400 (5)	C33—C38	1.411 (5)
C3—H3	0.9300	C33—C34	1.412 (5)
C4—C5	1.413 (4)	C34—C35	1.392 (5)
C4—C6	1.426 (5)	C35—C36	1.372 (6)
C5—C9	1.443 (5)	C35—H35	0.9300
C6—C7	1.342 (6)	C36—C37	1.366 (6)
C6—H6	0.9300	C36—H36	0.9300
C7—C8	1.434 (5)	C37—C38	1.384 (5)
C7—H7	0.9300	C37—H37	0.9300
C8—C10	1.401 (5)

O1—Pr1—O6	79.96 (9)	C10—C8—C7	123.6 (4)
O1—Pr1—O5	75.95 (8)	C9—C8—C7	119.0 (3)
O6—Pr1—O5	51.21 (8)	N2—C9—C8	122.0 (3)
O1—Pr1—O9	144.43 (9)	N2—C9—C5	118.3 (3)
O6—Pr1—O9	70.59 (9)	C8—C9—C5	119.7 (3)
O5—Pr1—O9	70.21 (8)	C11—C10—C8	120.3 (3)
O1—Pr1—O2	50.56 (7)	C11—C10—H10	119.9
O6—Pr1—O2	72.64 (8)	C8—C10—H10	119.9
O5—Pr1—O2	107.89 (8)	C10—C11—C12	118.3 (4)
O9—Pr1—O2	132.00 (8)	C10—C11—H11	120.8
O1—Pr1—O10	125.86 (8)	C12—C11—H11	120.8
O6—Pr1—O10	105.32 (8)	N2—C12—C11	124.3 (3)
O5—Pr1—O10	68.33 (8)	N2—C12—H12	117.8
O9—Pr1—O10	48.99 (8)	C11—C12—H12	117.8
O2—Pr1—O10	175.89 (8)	N3—C13—C14	122.8 (4)
O1—Pr1—N4	72.48 (8)	N3—C13—H13	118.6
O6—Pr1—N4	135.07 (9)	C14—C13—H13	118.6
O5—Pr1—N4	87.46 (8)	C15—C14—C13	118.9 (4)
O9—Pr1—N4	115.74 (8)	C15—C14—H14	120.6
O2—Pr1—N4	112.00 (8)	C13—C14—H14	120.6
O10—Pr1—N4	66.75 (8)	C14—C15—C16	120.3 (4)
O1—Pr1—N3	78.50 (8)	C14—C15—H15	119.8
O6—Pr1—N3	144.80 (9)	C16—C15—H15	119.8
O5—Pr1—N3	144.90 (8)	C15—C16—C17	117.0 (4)
O9—Pr1—N3	136.79 (9)	C15—C16—C21	123.6 (4)
O2—Pr1—N3	72.16 (8)	C17—C16—C21	119.4 (4)
O10—Pr1—N3	109.85 (8)	N3—C17—C16	122.8 (3)
N4—Pr1—N3	61.92 (8)	N3—C17—C18	118.2 (3)
O1—Pr1—N1	122.12 (8)	C16—C17—C18	118.9 (3)
O6—Pr1—N1	80.08 (9)	N4—C18—C19	122.1 (3)
O5—Pr1—N1	125.86 (8)	N4—C18—C17	117.9 (3)
O9—Pr1—N1	72.53 (8)	C19—C18—C17	120.0 (3)
O2—Pr1—N1	71.67 (8)	C22—C19—C18	117.2 (3)
O10—Pr1—N1	111.71 (8)	C22—C19—C20	123.9 (3)
N4—Pr1—N1	144.79 (9)	C18—C19—C20	118.8 (4)
N3—Pr1—N1	88.23 (8)	C21—C20—C19	121.6 (4)
O1—Pr1—N2	145.28 (8)	C21—C20—H20	119.2
O6—Pr1—N2	131.08 (9)	C19—C20—H20	119.2
O5—Pr1—N2	133.19 (8)	C20—C21—C16	121.1 (4)
O9—Pr1—N2	69.95 (9)	C20—C21—H21	119.4
O2—Pr1—N2	116.77 (8)	C16—C21—H21	119.4
O10—Pr1—N2	67.29 (8)	C23—C22—C19	120.2 (3)
N4—Pr1—N2	88.41 (8)	C23—C22—H22	119.9
N3—Pr1—N2	66.88 (8)	C19—C22—H22	119.9
N1—Pr1—N2	61.30 (8)	C22—C23—C24	119.2 (4)
C25—O1—Pr1	96.3 (2)	C22—C23—H23	120.4
C25—O2—Pr1	93.05 (19)	C24—C23—H23	120.4
C27—O3—H27	109.5	N4—C24—C23	122.8 (3)
C31—O4—H31	109.5	N4—C24—H24	118.6
C32—O5—Pr1	93.1 (2)	C23—C24—H24	118.6
C32—O6—Pr1	93.6 (2)	O1—C25—O2	120.1 (3)
C34—O7—H33	109.5	O1—C25—C26	119.6 (3)
C38—O8—H38	109.5	O2—C25—C26	120.3 (3)
N5—O9—Pr1	97.69 (19)	C31—C26—C27	118.2 (3)
N5—O10—Pr1	96.53 (19)	C31—C26—C25	121.0 (3)
C1—N1—C5	117.6 (3)	C27—C26—C25	120.8 (3)
C1—N1—Pr1	120.8 (2)	O3—C27—C28	117.6 (3)
C5—N1—Pr1	121.0 (2)	O3—C27—C26	122.3 (3)
C12—N2—C9	117.7 (3)	C28—C27—C26	120.1 (3)
C12—N2—Pr1	121.8 (2)	C29—C28—C27	119.9 (4)
C9—N2—Pr1	120.3 (2)	C29—C28—H28	120.1
C13—N3—C17	118.1 (3)	C27—C28—H28	120.1
C13—N3—Pr1	121.8 (2)	C28—C29—C30	121.7 (4)
C17—N3—Pr1	119.0 (2)	C28—C29—H29	119.1
C24—N4—C18	118.3 (3)	C30—C29—H29	119.1
C24—N4—Pr1	120.8 (2)	C29—C30—C31	119.7 (4)
C18—N4—Pr1	120.7 (2)	C29—C30—H30	120.2
O11—N5—O10	123.4 (4)	C31—C30—H30	120.2
O11—N5—O9	120.0 (4)	O4—C31—C30	117.9 (4)
O10—N5—O9	116.6 (3)	O4—C31—C26	121.7 (3)
N1—C1—C2	123.1 (4)	C30—C31—C26	120.4 (4)
N1—C1—H1	118.5	O6—C32—O5	120.1 (3)
C2—C1—H1	118.5	O6—C32—C33	120.3 (3)
C3—C2—C1	119.2 (4)	O5—C32—C33	119.6 (3)
C3—C2—H2	120.4	C38—C33—C34	118.3 (3)
C1—C2—H2	120.4	C38—C33—C32	120.8 (3)
C2—C3—C4	120.0 (3)	C34—C33—C32	120.9 (3)
C2—C3—H3	120.0	O7—C34—C35	117.3 (3)
C4—C3—H3	120.0	O7—C34—C33	122.5 (3)
C3—C4—C5	117.3 (3)	C35—C34—C33	120.2 (3)
C3—C4—C6	123.0 (3)	C36—C35—C34	119.1 (4)
C5—C4—C6	119.8 (3)	C36—C35—H35	120.5
N1—C5—C4	122.9 (3)	C34—C35—H35	120.5
N1—C5—C9	118.2 (3)	C37—C36—C35	122.5 (4)
C4—C5—C9	118.9 (3)	C37—C36—H36	118.7
C7—C6—C4	121.2 (3)	C35—C36—H36	118.7
C7—C6—H6	119.4	C36—C37—C38	119.3 (4)
C4—C6—H6	119.4	C36—C37—H37	120.3
C6—C7—C8	121.4 (4)	C38—C37—H37	120.3
C6—C7—H7	119.3	O8—C38—C37	118.6 (4)
C8—C7—H7	119.3	O8—C38—C33	120.9 (3)
C10—C8—C9	117.4 (3)	C37—C38—C33	120.5 (4)

Hydrogen-bond geometry (Å, º) top

D—H···A	D—H	H···A	D···A	D—H···A
O8—H38···O6	0.82	1.83	2.561 (4)	148
O7—H33···O5	0.82	1.87	2.592 (3)	147
O4—H31···O2	0.82	1.86	2.586 (4)	147
O3—H27···O1	0.82	1.85	2.577 (4)	147

Experimental details

Crystal data
Chemical formula	[Pr(C₇H₅O₃)₂(NO₃)(C₁₂H₈N₂)₂]
M_r	869.55
Crystal system, space group	Monoclinic, P2₁/c
Temperature (K)	298
a, b, c (Å)	11.2738 (2), 26.8015 (5), 14.3886 (4)
β (°)	127.934 (1)
V (Å³)	3429.02 (13)
Z	4
Radiation type	Mo Kα
µ (mm⁻¹)	1.49
Crystal size (mm)	0.50 × 0.42 × 0.40

Data collection
Diffractometer	Oxford Diffraction Gemini S Ultra
Absorption correction	Multi-scan (ABSPACK in CrysAlis PRO RED; Oxford Diffraction, 2006)
T_min, T_max	0.522, 0.586
No. of measured, independent and observed [I > 2σ(I)] reflections	28864, 6985, 6611
R_int	0.023
(sin θ/λ)_max (Å⁻¹)	0.625

Refinement
R[F² > 2σ(F²)], wR(F²), S	0.035, 0.075, 1.23
No. of reflections	6985
No. of parameters	500
H-atom treatment	H-atom parameters constrained
Δρ_max, Δρ_min (e Å⁻³)	0.66, −1.21

Computer programs: CrysAlis PRO CCD (Oxford Diffraction, 2006), CrysAlis PRO RED (Oxford Diffraction, 2006), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), DIAMOND (Brandenburg & Berndt, 1999).

Hydrogen-bond geometry (Å, º) top

D—H···A	D—H	H···A	D···A	D—H···A
O8—H38···O6	0.82	1.83	2.561 (4)	148
O7—H33···O5	0.82	1.87	2.592 (3)	147
O4—H31···O2	0.82	1.86	2.586 (4)	147
O3—H27···O1	0.82	1.85	2.577 (4)	147

Acknowledgements

The authors are grateful for financial support from the Natural Science Foundation of Zhejiang Province (project No. 2010 Y4100495).

References

Brandenburg, K. & Berndt, M. (1999). DIAMOND. Crystal Impact GbR, Bonn, Germany. Google Scholar
Oxford Diffraction (2006). CrysAlis PRO CCD and CrysAlis PRO RED. Oxford Diffraction Ltd, Abingdon, England. Google Scholar
Sheldrick, G. M. (2008). Acta Cryst. A64, 112–122. Web of Science CrossRef CAS IUCr Journals Google Scholar
Zheng, J., Jin, H. & Ge, H. (2010). Acta Cryst. E66, m1469–m1470. Web of Science CSD CrossRef IUCr Journals Google Scholar

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