Di-μ-hydroxido-bis-[aqua-(pyridine-2,6-dicarboxyl-ato)iron(III)] monohydrate.

In the dinuclear title complex, [Fe(2)(OH)(2)(C(7)H(3)NO(4))(2)(H(2)O)(2)]·H(2)O, the two Fe atoms are separated by 3.063 (1) Å. Inter-molecular O-H⋯O hydrogen bonds form an extensive three-dimensional hydrogen-bonding network, which consolidates the crystal packing.

Related literature

The crystal structure of the anhydrous form of the title dinuclear complex has been reported by Thich et al. (1976 ▶). For related structures, see: Aghabozorg et al. (2008 ▶); Eshtiagh-Hosseini et al. (2010 ▶).

Experimental

Crystal data

[Fe2(OH)2(C7H3NO4)2(H2O2)2]·H2O

M = 529.97

Monoclinic,

a = 11.4786 (11) Å

b = 21.7080 (16) Å

c = 7.3291 (6) Å

β = 90.099 (7)°

V = 1826.2 (3) Å3

Z = 4

Cu Kα radiation

μ = 13.53 mm−1

T = 150 K

0.20 × 0.20 × 0.14 mm

Data collection

Rigaku Rapid II diffractometer

Absorption correction: multi-scan (SCALEPACK; Otwinowski & Minor, 1997 ▶) T min = 0.120, T max = 0.150

14275 measured reflections

2831 independent reflections

2695 reflections with I > 2σ(I)

R int = 0.048

Refinement

R[F 2 > 2σ(F 2)] = 0.057

wR(F 2) = 0.153

S = 1.07

2831 reflections

311 parameters

H atoms treated by a mixture of independent and constrained refinement

Δρmax = 0.97 e Å−3

Δρmin = −0.76 e Å−3

Data collection: CrystalClear (Rigaku, 2001 ▶); cell refinement: DENZO/SCALEPACK (Otwinowski & Minor, 1997 ▶); data reduction: DENZO/SCALEPACK; method used to solve structure: charge flipping (Oszlányi & Sütő, 2004 ▶) implemented in PLATON (Spek, 2009 ▶); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008 ▶); molecular graphics: ORTEPII (Johnson, 1976 ▶) and PLATON; software used to prepare material for publication: SHELXL97.

Crystal structure: contains datablocks global, I. DOI: 10.1107/S1600536810041966/cv2763sup1.cif

Structure factors: contains datablocks I. DOI: 10.1107/S1600536810041966/cv2763Isup2.hkl

Additional supplementary materials: crystallographic information; 3D view; checkCIF report

[Fe2(OH)2(C7H3NO4)2(H2O2)2]·H2O	F(000) = 1072
Mr = 529.97	Dx = 1.927 Mg m−3
Monoclinic, P21/c	Cu - Kα radiation, λ = 1.54184 Å
Hall symbol: -P 2ybc	Cell parameters from 2932 reflections
a = 11.4786 (11) Å	θ = 2–63°
b = 21.7080 (16) Å	µ = 13.53 mm−1
c = 7.3291 (6) Å	T = 150 K
β = 90.099 (7)°	Chunk, orange
V = 1826.2 (3) Å3	0.20 × 0.20 × 0.14 mm
Z = 4

Rigaku Rapid II diffractometer	2695 reflections with I > 2σ(I)
confocal optics	Rint = 0.048
ω scans	θmax = 63.3°, θmin = 2.0°
Absorption correction: multi-scan (SCALEPACK; Otwinowski & Minor, 1997)	h = −11→12
Tmin = 0.120, Tmax = 0.150	k = −25→0
14275 measured reflections	l = 0→8
2831 independent reflections

Refinement on F2	0 restraints
Least-squares matrix: full	H atoms treated by a mixture of independent and constrained refinement
R[F2 > 2σ(F2)] = 0.057	w = 1/[σ2(Fo2) + (0.1304P)2 + 0.6186P] where P = (Fo2 + 2Fc2)/3
wR(F2) = 0.153	(Δ/σ)max < 0.001
S = 1.07	Δρmax = 0.97 e Å−3
2831 reflections	Δρmin = −0.76 e Å−3
311 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. Outlier data were removed using a local program based on the method of Prince and Nicholson [Prince, E. & Nicholson, W. L. (1983). Acta Cryst. A39, 407–410.]Refinement on F2 for ALL reflections except for 0 with very negative F2 or flagged by the user for potential systematic errors. Weighted R-factors wR and all goodnesses of fit S are based on F2, conventional R-factors R are based on F, with F set to zero for negative F2. The observed criterion of F2 > σ(F2) is used only for calculating R_factor_obs 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
Fe1	0.63100 (5)	0.12044 (2)	0.72067 (7)	0.0080 (3)
Fe2	0.89320 (5)	0.11910 (2)	0.79919 (7)	0.0082 (3)
O1	0.7813 (3)	0.11982 (10)	0.5976 (4)	0.0131 (7)
O2	0.7419 (3)	0.11662 (10)	0.9247 (4)	0.0111 (6)
O11	0.6011 (2)	0.02831 (10)	0.6877 (3)	0.0135 (6)
O12	0.4819 (2)	−0.05113 (9)	0.7494 (3)	0.0161 (6)
O13	0.57708 (19)	0.20747 (9)	0.8073 (3)	0.0115 (5)
O14	0.4320 (2)	0.26115 (10)	0.9362 (3)	0.0186 (6)
O15	0.5550 (2)	0.14072 (12)	0.4813 (3)	0.0159 (6)
O1W	0.7628 (2)	0.19217 (14)	0.2554 (3)	0.0220 (7)
O22	1.0531 (2)	−0.04764 (10)	0.7153 (3)	0.0163 (6)
O23	0.9419 (2)	0.20979 (9)	0.7383 (3)	0.0133 (5)
O24	1.0833 (2)	0.26950 (10)	0.6214 (3)	0.0191 (6)
O25	0.9767 (2)	0.13003 (13)	1.0362 (4)	0.0150 (6)
O221	0.9281 (2)	0.02666 (10)	0.8040 (3)	0.0118 (5)
N11	0.4717 (2)	0.10535 (13)	0.8448 (4)	0.0076 (6)
N21	1.0478 (3)	0.11096 (12)	0.6582 (4)	0.0091 (7)
C12	0.4279 (3)	0.04863 (14)	0.8479 (4)	0.0109 (7)
C13	0.3222 (3)	0.03599 (14)	0.9274 (4)	0.0123 (7)
C14	0.2600 (3)	0.08500 (16)	1.0037 (4)	0.0164 (8)
C15	0.3062 (3)	0.14464 (15)	0.9951 (4)	0.0154 (8)
C16	0.4128 (3)	0.15301 (15)	0.9138 (4)	0.0111 (7)
C17	0.5088 (3)	0.00355 (14)	0.7540 (4)	0.0110 (7)
C18	0.4780 (3)	0.21304 (14)	0.8853 (4)	0.0116 (7)
C22	1.0924 (3)	0.05521 (14)	0.6318 (4)	0.0100 (7)
C23	1.1952 (3)	0.04648 (15)	0.5364 (4)	0.0131 (7)
C24	1.2517 (3)	0.09854 (16)	0.4704 (4)	0.0156 (8)
C25	1.2059 (3)	0.15709 (15)	0.5038 (4)	0.0149 (7)
C26	1.1027 (3)	0.16140 (14)	0.5996 (4)	0.0100 (7)
C27	1.0193 (3)	0.00617 (14)	0.7233 (4)	0.0110 (7)
C28	1.0388 (3)	0.21935 (14)	0.6557 (4)	0.0125 (7)
H1	0.799 (5)	0.132 (2)	0.514 (8)	0.026 (14)*
H2	0.724 (5)	0.132 (2)	1.007 (8)	0.032 (15)*
H13	0.2930	−0.0039	0.9304	0.015*
H14	0.1886	0.0780	1.0597	0.020*
H15	0.2656	0.1779	1.0435	0.019*
H23	1.2253	0.0072	0.5172	0.016*
H24	1.3201	0.0944	0.4037	0.019*
H25	1.2440	0.1923	0.4627	0.018*
H151	0.539 (4)	0.111 (2)	0.414 (7)	0.028 (12)*
H152	0.522 (4)	0.173 (2)	0.474 (6)	0.041 (14)*
H1W1	0.817 (4)	0.2200 (19)	0.255 (6)	0.025 (11)*
H1W2	0.704 (4)	0.217 (2)	0.262 (6)	0.042 (15)*
H251	1.006 (4)	0.161 (2)	1.063 (6)	0.039 (14)*
H252	0.973 (5)	0.106 (2)	1.101 (8)	0.047*

	U11	U22	U33	U12	U13	U23
Fe1	0.0075 (4)	0.0056 (4)	0.0109 (4)	0.00088 (17)	0.0042 (2)	−0.00093 (16)
Fe2	0.0078 (4)	0.0058 (4)	0.0108 (4)	−0.00005 (17)	0.0047 (2)	0.00054 (16)
O1	0.0074 (17)	0.0223 (15)	0.0096 (14)	−0.0017 (9)	0.0030 (11)	0.0039 (9)
O2	0.0066 (16)	0.0154 (14)	0.0114 (14)	0.0015 (9)	0.0032 (11)	−0.0035 (9)
O11	0.0179 (15)	0.0068 (11)	0.0158 (12)	0.0024 (9)	0.0035 (10)	−0.0009 (8)
O12	0.0242 (15)	0.0072 (12)	0.0170 (11)	−0.0010 (9)	−0.0031 (10)	−0.0016 (8)
O13	0.0120 (14)	0.0062 (11)	0.0164 (11)	−0.0011 (9)	0.0047 (9)	−0.0019 (8)
O14	0.0146 (14)	0.0089 (11)	0.0323 (14)	0.0016 (9)	0.0049 (10)	−0.0058 (9)
O15	0.0231 (16)	0.0076 (13)	0.0169 (13)	0.0073 (11)	−0.0031 (10)	−0.0043 (10)
O1W	0.0215 (18)	0.0158 (15)	0.0288 (16)	−0.0023 (11)	0.0084 (12)	−0.0012 (9)
O22	0.0270 (16)	0.0077 (12)	0.0141 (11)	0.0037 (9)	0.0041 (10)	0.0003 (8)
O23	0.0142 (14)	0.0062 (11)	0.0195 (12)	0.0031 (9)	0.0070 (10)	0.0022 (8)
O24	0.0188 (15)	0.0076 (11)	0.0309 (13)	−0.0019 (10)	0.0039 (10)	0.0052 (10)
O25	0.0210 (16)	0.0102 (12)	0.0138 (13)	−0.0068 (11)	0.0003 (11)	0.0020 (9)
O221	0.0129 (14)	0.0061 (11)	0.0164 (11)	−0.0010 (9)	0.0046 (9)	−0.0012 (8)
N11	0.0020 (16)	0.0097 (13)	0.0111 (14)	0.0001 (11)	0.0014 (11)	−0.0024 (11)
N21	0.0082 (18)	0.0089 (14)	0.0103 (14)	−0.0002 (11)	0.0013 (12)	0.0023 (10)
C12	0.0107 (19)	0.0116 (16)	0.0104 (15)	−0.0015 (13)	−0.0023 (13)	−0.0011 (12)
C13	0.0108 (19)	0.0107 (15)	0.0155 (15)	−0.0052 (13)	−0.0020 (13)	0.0038 (12)
C14	0.011 (2)	0.0233 (18)	0.0154 (16)	−0.0001 (14)	0.0020 (13)	0.0030 (13)
C15	0.016 (2)	0.0147 (17)	0.0157 (16)	0.0010 (14)	0.0053 (14)	−0.0016 (13)
C16	0.012 (2)	0.0105 (16)	0.0104 (15)	0.0042 (13)	0.0022 (13)	−0.0016 (12)
C17	0.0147 (19)	0.0079 (16)	0.0106 (13)	0.0013 (13)	−0.0023 (13)	0.0018 (12)
C18	0.011 (2)	0.0104 (16)	0.0135 (15)	−0.0002 (13)	0.0005 (13)	−0.0014 (12)
C22	0.010 (2)	0.0086 (15)	0.0114 (15)	0.0008 (13)	0.0015 (12)	−0.0025 (12)
C23	0.014 (2)	0.0128 (16)	0.0123 (16)	0.0013 (13)	−0.0007 (13)	−0.0026 (12)
C24	0.010 (2)	0.0244 (18)	0.0128 (15)	−0.0009 (15)	0.0055 (13)	−0.0027 (14)
C25	0.015 (2)	0.0134 (16)	0.0163 (16)	−0.0044 (14)	0.0041 (14)	0.0026 (13)
C26	0.0128 (19)	0.0079 (15)	0.0093 (14)	0.0006 (13)	0.0013 (13)	0.0021 (12)
C27	0.015 (2)	0.0106 (16)	0.0078 (15)	0.0011 (13)	0.0004 (12)	0.0014 (12)
C28	0.015 (2)	0.0090 (16)	0.0141 (15)	−0.0010 (13)	0.0028 (14)	0.0011 (12)

Fe1—O1	1.948 (3)	O25—H251	0.77 (5)
Fe1—O2	1.964 (3)	O25—H252	0.71 (5)
Fe1—O15	2.007 (2)	O221—C27	1.283 (4)
Fe1—O11	2.043 (2)	N11—C12	1.330 (4)
Fe1—N11	2.070 (3)	N11—C16	1.336 (4)
Fe1—O13	2.087 (2)	N21—C22	1.328 (4)
Fe2—O1	1.956 (3)	N21—C26	1.335 (4)
Fe2—O2	1.967 (3)	C12—C13	1.375 (5)
Fe2—O25	1.997 (3)	C12—C17	1.515 (4)
Fe2—O221	2.047 (2)	C13—C14	1.398 (5)
Fe2—N21	2.063 (3)	C13—H13	0.9300
Fe2—O23	2.095 (2)	C14—C15	1.400 (5)
O1—H1	0.70 (5)	C14—H14	0.9300
O2—H2	0.72 (5)	C15—C16	1.374 (5)
O11—C17	1.285 (4)	C15—H15	0.9300
O12—C17	1.227 (4)	C16—C18	1.517 (4)
O13—C18	1.280 (4)	C22—C23	1.385 (5)
O14—C18	1.229 (4)	C22—C27	1.513 (4)
O15—H151	0.82 (5)	C23—C24	1.390 (5)
O15—H152	0.80 (5)	C23—H23	0.9300
O1W—H1W1	0.87 (4)	C24—C25	1.397 (5)
O1W—H1W2	0.87 (5)	C24—H24	0.9300
O22—C27	1.232 (4)	C25—C26	1.382 (5)
O23—C28	1.284 (4)	C25—H25	0.9300
O24—C28	1.229 (4)	C26—C28	1.514 (4)
O1—Fe1—O2	77.23 (13)	C12—N11—Fe1	119.2 (2)
O1—Fe1—O15	88.89 (11)	C16—N11—Fe1	119.5 (2)
O2—Fe1—O15	162.77 (11)	C22—N21—C26	121.2 (3)
O1—Fe1—O11	94.99 (9)	C22—N21—Fe2	118.9 (2)
O2—Fe1—O11	99.04 (9)	C26—N21—Fe2	119.8 (2)
O15—Fe1—O11	92.22 (10)	N11—C12—C13	121.7 (3)
O1—Fe1—N11	170.43 (11)	N11—C12—C17	111.0 (3)
O2—Fe1—N11	103.34 (12)	C13—C12—C17	127.3 (3)
O15—Fe1—N11	92.06 (11)	C12—C13—C14	118.0 (3)
O11—Fe1—N11	75.46 (10)	C12—C13—H13	121.00
O1—Fe1—O13	114.22 (9)	C14—C13—H13	121.00
O2—Fe1—O13	89.93 (9)	C13—C14—C15	119.5 (3)
O15—Fe1—O13	86.48 (9)	C13—C14—H14	120.30
O11—Fe1—O13	150.70 (9)	C15—C14—H14	120.30
N11—Fe1—O13	75.34 (10)	C16—C15—C14	118.6 (3)
O1—Fe2—O2	76.95 (14)	C16—C15—H15	120.70
O1—Fe2—O25	165.85 (12)	C14—C15—H15	120.70
O2—Fe2—O25	91.08 (12)	N11—C16—C15	120.9 (3)
O1—Fe2—O221	98.57 (9)	N11—C16—C18	111.3 (3)
O2—Fe2—O221	97.93 (9)	C15—C16—C18	127.8 (3)
O25—Fe2—O221	90.46 (10)	O12—C17—O11	127.0 (3)
O1—Fe2—N21	100.77 (12)	O12—C17—C12	118.9 (3)
O2—Fe2—N21	173.12 (11)	O11—C17—C12	114.1 (3)
O25—Fe2—N21	91.96 (11)	O14—C18—O13	126.8 (3)
O221—Fe2—N21	75.88 (10)	O14—C18—C16	118.4 (3)
O1—Fe2—O23	90.39 (10)	O13—C18—C16	114.8 (3)
O2—Fe2—O23	111.18 (9)	N21—C22—C23	121.8 (3)
O25—Fe2—O23	86.90 (10)	N21—C22—C27	111.2 (3)
O221—Fe2—O23	150.80 (10)	C23—C22—C27	126.9 (3)
N21—Fe2—O23	75.16 (10)	C22—C23—C24	117.5 (3)
Fe1—O1—Fe2	103.38 (14)	C22—C23—H23	121.20
Fe1—O1—H1	132 (4)	C24—C23—H23	121.20
Fe2—O1—H1	118 (4)	C23—C24—C25	120.2 (3)
Fe1—O2—Fe2	102.37 (13)	C23—C24—H24	119.90
Fe1—O2—H2	116 (4)	C25—C24—H24	119.90
Fe2—O2—H2	129 (4)	C26—C25—C24	118.3 (3)
C17—O11—Fe1	120.21 (19)	C26—C25—H25	120.90
C18—O13—Fe1	119.0 (2)	C24—C25—H25	120.90
Fe1—O15—H151	117 (3)	N21—C26—C25	120.9 (3)
Fe1—O15—H152	117 (3)	N21—C26—C28	111.4 (3)
H151—O15—H152	123 (5)	C25—C26—C28	127.7 (3)
H1W1—O1W—H1W2	97 (5)	O22—C27—O221	127.4 (3)
C28—O23—Fe2	118.9 (2)	O22—C27—C22	118.1 (3)
Fe2—O25—H251	122 (3)	O221—C27—C22	114.5 (3)
Fe2—O25—H252	118 (5)	O24—C28—O23	126.9 (3)
H251—O25—H252	120 (6)	O24—C28—C26	118.6 (3)
C27—O221—Fe2	119.46 (19)	O23—C28—C26	114.5 (3)
C12—N11—C16	121.3 (3)
O2—Fe1—O1—Fe2	−2.02 (11)	O2—Fe2—N21—C26	157.8 (8)
O15—Fe1—O1—Fe2	167.69 (12)	O25—Fe2—N21—C26	−86.0 (3)
O11—Fe1—O1—Fe2	−100.17 (11)	O221—Fe2—N21—C26	−176.0 (3)
N11—Fe1—O1—Fe2	−96.5 (6)	O23—Fe2—N21—C26	0.3 (2)
O13—Fe1—O1—Fe2	82.06 (12)	C16—N11—C12—C13	−2.2 (5)
O2—Fe2—O1—Fe1	2.02 (11)	Fe1—N11—C12—C13	−179.6 (2)
O25—Fe2—O1—Fe1	−30.9 (5)	C16—N11—C12—C17	177.4 (3)
O221—Fe2—O1—Fe1	98.23 (11)	Fe1—N11—C12—C17	0.1 (3)
N21—Fe2—O1—Fe1	175.38 (10)	N11—C12—C13—C14	0.9 (5)
O23—Fe2—O1—Fe1	−109.66 (10)	C17—C12—C13—C14	−178.7 (3)
O1—Fe1—O2—Fe2	2.00 (11)	C12—C13—C14—C15	0.6 (5)
O15—Fe1—O2—Fe2	−35.1 (4)	C13—C14—C15—C16	−1.0 (5)
O11—Fe1—O2—Fe2	95.11 (10)	C12—N11—C16—C15	1.9 (5)
N11—Fe1—O2—Fe2	172.19 (10)	Fe1—N11—C16—C15	179.2 (2)
O13—Fe1—O2—Fe2	−112.90 (10)	C12—N11—C16—C18	−177.1 (3)
O1—Fe2—O2—Fe1	−1.99 (11)	Fe1—N11—C16—C18	0.3 (3)
O25—Fe2—O2—Fe1	170.38 (11)	C14—C15—C16—N11	−0.2 (5)
O221—Fe2—O2—Fe1	−99.01 (10)	C14—C15—C16—C18	178.5 (3)
N21—Fe2—O2—Fe1	−73.4 (9)	Fe1—O11—C17—O12	−177.6 (2)
O23—Fe2—O2—Fe1	83.29 (12)	Fe1—O11—C17—C12	1.9 (3)
O1—Fe1—O11—C17	177.9 (2)	N11—C12—C17—O12	178.3 (3)
O2—Fe1—O11—C17	100.1 (2)	C13—C12—C17—O12	−2.1 (5)
O15—Fe1—O11—C17	−93.0 (2)	N11—C12—C17—O11	−1.2 (4)
N11—Fe1—O11—C17	−1.5 (2)	C13—C12—C17—O11	178.4 (3)
O13—Fe1—O11—C17	−6.3 (3)	Fe1—O13—C18—O14	−176.5 (3)
O1—Fe1—O13—C18	178.2 (2)	Fe1—O13—C18—C16	2.9 (3)
O2—Fe1—O13—C18	−105.9 (2)	N11—C16—C18—O14	177.4 (3)
O15—Fe1—O13—C18	91.0 (2)	C15—C16—C18—O14	−1.4 (5)
O11—Fe1—O13—C18	2.7 (3)	N11—C16—C18—O13	−2.0 (4)
N11—Fe1—O13—C18	−2.1 (2)	C15—C16—C18—O13	179.1 (3)
O1—Fe2—O23—C28	−103.7 (2)	C26—N21—C22—C23	−2.6 (5)
O2—Fe2—O23—C28	−179.9 (2)	Fe2—N21—C22—C23	179.2 (2)
O25—Fe2—O23—C28	90.2 (2)	C26—N21—C22—C27	175.4 (3)
O221—Fe2—O23—C28	4.8 (3)	Fe2—N21—C22—C27	−2.7 (4)
N21—Fe2—O23—C28	−2.7 (2)	N21—C22—C23—C24	0.8 (5)
O1—Fe2—O221—C27	97.8 (2)	C27—C22—C23—C24	−176.9 (3)
O2—Fe2—O221—C27	175.7 (2)	C22—C23—C24—C25	1.2 (5)
O25—Fe2—O221—C27	−93.1 (2)	C23—C24—C25—C26	−1.5 (5)
N21—Fe2—O221—C27	−1.2 (2)	C22—N21—C26—C25	2.3 (5)
O23—Fe2—O221—C27	−8.6 (3)	Fe2—N21—C26—C25	−179.5 (2)
O1—Fe1—N11—C12	−3.1 (8)	C22—N21—C26—C28	−176.5 (3)
O2—Fe1—N11—C12	−95.4 (2)	Fe2—N21—C26—C28	1.7 (4)
O15—Fe1—N11—C12	92.4 (2)	C24—C25—C26—N21	−0.2 (5)
O11—Fe1—N11—C12	0.7 (2)	C24—C25—C26—C28	178.3 (3)
O13—Fe1—N11—C12	178.2 (3)	Fe2—O221—C27—O22	179.1 (2)
O1—Fe1—N11—C16	179.5 (6)	Fe2—O221—C27—C22	0.1 (3)
O2—Fe1—N11—C16	87.2 (2)	N21—C22—C27—O22	−177.4 (3)
O15—Fe1—N11—C16	−85.0 (2)	C23—C22—C27—O22	0.5 (5)
O11—Fe1—N11—C16	−176.8 (3)	N21—C22—C27—O221	1.7 (4)
O13—Fe1—N11—C16	0.8 (2)	C23—C22—C27—O221	179.6 (3)
O1—Fe2—N21—C22	−94.0 (2)	Fe2—O23—C28—O24	−174.8 (3)
O2—Fe2—N21—C22	−24.0 (10)	Fe2—O23—C28—C26	4.3 (3)
O25—Fe2—N21—C22	92.2 (3)	N21—C26—C28—O24	175.3 (3)
O221—Fe2—N21—C22	2.2 (2)	C25—C26—C28—O24	−3.4 (5)
O23—Fe2—N21—C22	178.5 (3)	N21—C26—C28—O23	−3.8 (4)
O1—Fe2—N21—C26	87.8 (3)	C25—C26—C28—O23	177.5 (3)

D—H···A	D—H	H···A	D···A	D—H···A
O1—H1···O1W	0.70 (5)	2.34 (5)	2.966 (3)	151 (5)
O2—H2···O1Wi	0.72 (5)	2.28 (5)	2.936 (3)	151 (5)
O15—H151···O12ii	0.83 (5)	1.78 (5)	2.611 (5)	173 (5)
O15—H152···O14iii	0.80 (4)	1.79 (4)	2.577 (4)	171 (5)
O25—H251···O24iv	0.78 (4)	1.80 (4)	2.577 (4)	176 (5)
O25—H252···O22v	0.71 (5)	1.87 (5)	2.576 (5)	173 (6)
O1W—H1W1···O23iii	0.87 (4)	2.10 (4)	2.962 (4)	176 (4)
O1W—H1W2···O13iii	0.87 (5)	2.22 (4)	3.072 (4)	169 (4)

Table 1

Hydrogen-bond geometry (Å, °)

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
O1—H1⋯O1W	0.70 (5)	2.34 (5)	2.966 (3)	151 (5)
O2—H2⋯O1Wi	0.72 (5)	2.28 (5)	2.936 (3)	151 (5)
O15—H151⋯O12ii	0.83 (5)	1.78 (5)	2.611 (5)	173 (5)
O15—H152⋯O14iii	0.80 (4)	1.79 (4)	2.577 (4)	171 (5)
O25—H251⋯O24iv	0.78 (4)	1.80 (4)	2.577 (4)	176 (5)
O25—H252⋯O22v	0.71 (5)	1.87 (5)	2.576 (5)	173 (6)
O1W—H1W1⋯O23iii	0.87 (4)	2.10 (4)	2.962 (4)	176 (4)
O1W—H1W2⋯O13iii	0.87 (5)	2.22 (4)	3.072 (4)	169 (4)

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