{2,2′-[3-Aza­pentane-1,5-diylbis(nitrilo­methyl­idyne)]dipyrrol-1-yl}(4-methyl­pyridine)cobalt(III) tetra­phenyl­borate

Meghdadi, S.; Amirnasr, M.; Mereiter, K.; Karimi Abdolmaleki, M.

doi:10.1107/S1600536810006112

metal-organic compounds

CRYSTALLOGRAPHIC
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ISSN: 2056-9890

Volume 66| Part 3| March 2010| Pages m332-m333

doi:10.1107/S1600536810006112

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{2,2′-[3-Azapentane-1,5-diylbis(nitrilomethylidyne)]dipyrrol-1-yl}(4-methylpyridine)cobalt(III) tetraphenylborate

Soraia Meghdadi,^a Mehdi Amirnasr,^a ^* Kurt Mereiter ^b and Mahmood Karimi Abdolmaleki ^a

^aDepartment of Chemistry, Isfahan University of Technology, Isfahan 84156 83111, Iran, and ^bFaculty of Chemistry, Vienna University of Technology, Getreidemarkt 9/164SC, A 1060 Vienna, Austria
^*Correspondence e-mail: smeghdad@cc.iut.ac.ir

(Received 29 January 2010; accepted 15 February 2010; online 24 February 2010)

The title compound, [Co(C₁₄H₁₇N₅)(C₆H₇N)](C₂₄H₂₀B) or [Co{(pyrrole)₂dien}(4-Mepy)]BPh₄ where (pyrrole)₂dien is 2,2′-[(3-azapentane-1,5-diylbis(nitrilomethylidyne)]dipyrrole and 4-Mepy is 4-methylpyridine, contains a pentadentate (pyrrole)₂dien ligand furnishing an N₅ set, such that two of the pyrrole N atoms and two of the dien N atoms occupy the equatorial positions while one of the imine N atoms of the (pyrrole)₂dien ligand occupies the axial position. The 4-methylpyridine ligand occupies an axial position trans to one of the imine N atoms of the pentadentate ligand. In the observed conformation of the pentadentate ligand, the pyrrole rings attain asymmetrical positions owing to the structural demands. The geometry of the resulting CoN₆ coordination can be described as distorted octahedral.

Related literature

For general background to the applications of transition metal–Schiff base complexes, see: Nishinaga & Tomita (1980 ); Speiser & Stahl (1995 ); Miodragović et al. (2006 ); Amirnasr et al. (2006 ); Morshedi et al. (2006 ); Meghdadi et al. (2007 , 2008 ); Park et al. (1998 ); Mishra et al. (2008 ). For the synthesis of the ligand, see: Kwiatkowski et al. (1993 ). For related structures, see: Meghdadi et al. (2007, 2008).

Experimental

Crystal data

[Co(C₁₄H₁₇N₅)(C₆H₇N)](C₂₄H₂₀B)
M_r = 726.59
Monoclinic, P 2₁ /n
a = 11.0332 (16) Å
b = 19.559 (3) Å
c = 17.138 (3) Å
β = 92.164 (2)°
V = 3695.7 (9) Å³
Z = 4
Mo Kα radiation
μ = 0.51 mm⁻¹
T = 100 K
0.52 × 0.46 × 0.35 mm

Data collection

Bruker SMART APEX CCD diffractometer
Absorption correction: multi-scan (SADABS; Bruker, 2003 ) T_min = 0.71, T_max = 0.84
66110 measured reflections
10797 independent reflections
8767 reflections with I > 2σ(I)
R_int = 0.036

Refinement

R[F² > 2σ(F²)] = 0.038
wR(F²) = 0.104
S = 1.07
10797 reflections
474 parameters
H atoms treated by a mixture of independent and constrained refinement
Δρ_max = 0.57 e Å⁻³
Δρ_min = −0.22 e Å⁻³

Data collection: SMART (Bruker, 2003); cell refinement: SAINT (Bruker, 2003); data reduction: SAINT and XPREP (Bruker, 2003); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008 ); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: SHELXTL (Sheldrick, 2008); software used to prepare material for publication: SHELXTL .

Supporting information

Crystal structure: contains datablocks I, New_Global_Publ_Block. DOI: 10.1107/S1600536810006112/dn2536sup1.cif

Structure factors: contains datablock I. DOI: 10.1107/S1600536810006112/dn2536Isup2.hkl

checkCIF report

Comment top

Transition metal Schiff-base complexes have been extensively studied due to their applications, e.g., their ability to reversibly bind oxygen, and their use in catalysis for oxygenation and oxidation reactions of organic compounds (Nishinaga et al. 1980; Speiser et al., 1995; Park et al., 1998). Among these metal complexes, cobalt(III) Schiff base complexes with two amines in axial positions have attracted considerable interest due to their ability as antimicrobial agents (Miodragović et al., 2006; Mishra et al., 2008). Transition metal complexes with pentadentate ligands show interesting structural features and have also been playing an important role in the development of coordination chemistry (Amirnasr et al., 2006; Morshedi et al., 2006; Meghdadi et al., 2007; Meghdadi et al., 2008) . In this context, we herein report the synthesis and structure of the title compound, [Co{(pyrrole)₂dien}(4-Mepy)]BPh₄, (I), and make a brief comparison with reported structures.

The environment surrounding Co^III in (I) is distorted octahedral (Fig. 1), in which the three N atoms of the Schiff base ligand are arranged in facial positions. The geometric parameters are listed below in the supplementary materials. The two chelate bite angles (81.38 (5)°, 82.26 (5)°) formed by the two imine-N and the secondary amine-N of the Schiff base are similar. The five-membered chelate rings formed by the pyrrole-N and the imine-N atoms have almost identical bite angles (N1—Co1—N2 82.11 (5)°; N4—Co1—N5 82.22 (5)°). The three trans angles, (N2—Co1—N5 170.28 (5)°; N4—Co1—N6 170.80 (5)°, N1—Co1—N3 161.96 (5)°) deviate significantly from ideal. The Co—N(pyrrole), Co—N(imine), Co—N(secondary amine) and CoN-(4-methylpyridine) bond lengths are comparable with the bond lengths observed in related Co(III) complexes (Meghdadi et al., 2008). The conformation adopted by the (pyrrole)₂dien in (I) is different from that of (Me-sal)₂dpt in [Co{(Me-sal)₂dpt}(py)]PF₆ (Meghdadi et al., 2007). While the three donor N atoms of (Me-sal)₂dpt occupy three meridional sites and the two phenolate-O atoms are trans to each other, the three N atoms of (pyrrole)₂dien ligand are arranged in facial positions and the two pyrrole-N atoms are cis. This is presumably due to the structural demands imparted by (pyrrole)₂dien Schiff base ligand which has forced the [Co{(pyrrole)₂dien}(4-Mepy)]⁺ to attain such a twisted structure.

Related literature top

For general background to the applications of transition metal–Schiff base complexes, see: Nishinaga et al. (1980); Speiser et al. (1995); Miodragović et al. (2006); Amirnasr et al. (2006); Morshedi et al. (2006); Meghdadi et al. (2007, 2008); Park et al. (1998); Mishra et al. (2008). For the synthesis of the ligand, see: Kwiatkowski et al. (1993). For related structures, see: Meghdadi et al. (2007, 2008).

Experimental top

The ligand was synthesized according to the literature (Kwiatkowski et al., 1993). To a stirring solution of Co(CH₃COO)₂.4H₂O (0.249 g, 1 mmol) in absolute ethanol (50 ml) was added an equimolar amount of ligand (0.256 g, 1 mmol). The pink solution turned brown immediately upon the formation of Co(III) complex. To this solution was added dropwise 7.5 mmol of the 4-methylpyridine. The reaction mixture was stirred for about 4 h and then filtered off. To the brown filtrate was added NaBPh₄ (0.342 g, 1 mmol). The solution was left undisturbed for three days. The brown microcrystalline product was filtered off and washed with cold methanol. Brown crystals of the compound suitable for X-ray crystallography were obtained by diffusion of diethyl ether in to the acetone solution of the product.

Computing details top

Data collection: SMART (Bruker, 2003); cell refinement: SAINT (Bruker, 2003); data reduction: SAINT and XPREP (Bruker, 2003); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: SHELXTL (Sheldrick, 2008); software used to prepare material for publication: SHELXTL (Sheldrick, 2008).

Figures top

Fig. 1. Molecular view of [Co{(pyrrole)₂dien}(4-Mepy)]⁺ , with the atom labeling scheme. Displacement ellipsoids are drawn at 50% probability level. H atoms omitted for clarity.

{2,2'-[3-Azapentane-1,5-diylbis(nitrilomethylidyne)]dipyrrol-1-yl}(4- methylpyridine)cobalt(III) tetraphenylborate top

Crystal data top

[Co(C₁₄H₁₇N₅)(C₆H₇N)](C₂₄H₂₀B)	F(000) = 1528
M_r = 726.59	D_x = 1.306 Mg m⁻³
Monoclinic, P2₁/n	Mo Kα radiation, λ = 0.71073 Å
Hall symbol: -P 2yn	Cell parameters from 7791 reflections
a = 11.0332 (16) Å	θ = 2.4–30.0°
b = 19.559 (3) Å	µ = 0.51 mm⁻¹
c = 17.138 (3) Å	T = 100 K
β = 92.164 (2)°	Prism, brown
V = 3695.7 (9) Å³	0.52 × 0.46 × 0.35 mm
Z = 4

Data collection top

Bruker SMART APEX CCD diffractometer	10797 independent reflections
Radiation source: normal-focus sealed tube	8767 reflections with I > 2σ(I)
Graphite monochromator	R_int = 0.036
\ and ω scans	θ_max = 30.0°, θ_min = 2.4°
Absorption correction: multi-scan (SADABS; Bruker, 2003)	h = −15→15
T_min = 0.71, T_max = 0.84	k = −27→27
66110 measured reflections	l = −24→24

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)] = 0.038	Hydrogen site location: inferred from neighbouring sites
wR(F²) = 0.104	H atoms treated by a mixture of independent and constrained refinement
S = 1.07	w = 1/[σ²(F_o²) + (0.0519P)² + 1.7914P] where P = (F_o² + 2F_c²)/3
10797 reflections	(Δ/σ)_max = 0.002
474 parameters	Δρ_max = 0.57 e Å⁻³
0 restraints	Δρ_min = −0.22 e Å⁻³

Crystal data top

[Co(C₁₄H₁₇N₅)(C₆H₇N)](C₂₄H₂₀B)	V = 3695.7 (9) Å³
M_r = 726.59	Z = 4
Monoclinic, P2₁/n	Mo Kα radiation
a = 11.0332 (16) Å	µ = 0.51 mm⁻¹
b = 19.559 (3) Å	T = 100 K
c = 17.138 (3) Å	0.52 × 0.46 × 0.35 mm
β = 92.164 (2)°

Data collection top

Bruker SMART APEX CCD diffractometer	10797 independent reflections
Absorption correction: multi-scan (SADABS; Bruker, 2003)	8767 reflections with I > 2σ(I)
T_min = 0.71, T_max = 0.84	R_int = 0.036
66110 measured reflections

Refinement top

R[F² > 2σ(F²)] = 0.038	0 restraints
wR(F²) = 0.104	H atoms treated by a mixture of independent and constrained refinement
S = 1.07	Δρ_max = 0.57 e Å⁻³
10797 reflections	Δρ_min = −0.22 e Å⁻³
474 parameters

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.

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
Co1	0.270495 (16)	0.246611 (9)	0.511104 (10)	0.01323 (5)
N1	0.29289 (11)	0.26519 (6)	0.61977 (7)	0.0168 (2)
N2	0.35020 (11)	0.16303 (6)	0.54069 (7)	0.0169 (2)
N3	0.25046 (11)	0.19607 (6)	0.40752 (7)	0.0168 (2)
H3N	0.2513 (16)	0.2203 (10)	0.3655 (11)	0.021 (4)*
N4	0.11170 (11)	0.21273 (6)	0.52448 (7)	0.0174 (2)
N5	0.18479 (10)	0.33239 (6)	0.49985 (7)	0.0168 (2)
N6	0.42291 (10)	0.28990 (6)	0.48320 (7)	0.0149 (2)
C1	0.26993 (15)	0.31506 (8)	0.67082 (9)	0.0243 (3)
H1	0.2325	0.3575	0.6580	0.029*
C2	0.30967 (17)	0.29492 (9)	0.74592 (10)	0.0324 (4)
H2	0.3045	0.3212	0.7923	0.039*
C3	0.35806 (16)	0.22953 (9)	0.74040 (9)	0.0281 (3)
H3	0.3921	0.2025	0.7817	0.034*
C4	0.34628 (13)	0.21183 (7)	0.66153 (8)	0.0190 (3)
C5	0.37794 (13)	0.15587 (7)	0.61457 (8)	0.0192 (3)
H5	0.4165	0.1161	0.6353	0.023*
C6	0.37524 (14)	0.11217 (7)	0.48109 (9)	0.0208 (3)
H6A	0.3190	0.0729	0.4845	0.025*
H6B	0.4595	0.0952	0.4876	0.025*
C7	0.35670 (14)	0.14869 (7)	0.40325 (8)	0.0204 (3)
H7A	0.4305	0.1750	0.3914	0.024*
H7B	0.3417	0.1148	0.3611	0.024*
C8	0.13076 (14)	0.15881 (8)	0.40369 (9)	0.0218 (3)
H8A	0.1404	0.1141	0.3775	0.026*
H8B	0.0701	0.1859	0.3729	0.026*
C9	0.08666 (14)	0.14765 (7)	0.48620 (9)	0.0216 (3)
H9A	−0.0011	0.1371	0.4852	0.026*
H9B	0.1318	0.1100	0.5128	0.026*
C10	0.02770 (13)	0.25895 (7)	0.53121 (9)	0.0199 (3)
H10	−0.0550	0.2476	0.5379	0.024*
C11	0.06867 (13)	0.32712 (7)	0.52786 (9)	0.0192 (3)
C12	0.02430 (14)	0.39236 (8)	0.54421 (9)	0.0240 (3)
H12	−0.0528	0.4034	0.5636	0.029*
C13	0.11611 (15)	0.43788 (8)	0.52628 (10)	0.0259 (3)
H13	0.1133	0.4862	0.5311	0.031*
C14	0.21353 (14)	0.39927 (7)	0.49984 (9)	0.0209 (3)
H14	0.2886	0.4176	0.4842	0.025*
C15	0.43211 (13)	0.31823 (7)	0.41192 (8)	0.0182 (3)
H15	0.3629	0.3178	0.3773	0.022*
C16	0.53711 (13)	0.34777 (7)	0.38701 (8)	0.0206 (3)
H16	0.5396	0.3666	0.3360	0.025*
C17	0.63943 (13)	0.34989 (8)	0.43680 (9)	0.0208 (3)
C18	0.62879 (13)	0.32259 (8)	0.51101 (9)	0.0206 (3)
H18	0.6958	0.3242	0.5475	0.025*
C19	0.52091 (12)	0.29305 (7)	0.53198 (8)	0.0177 (3)
H19	0.5159	0.2743	0.5829	0.021*
C20	0.75545 (15)	0.38114 (10)	0.41104 (11)	0.0336 (4)
H20A	0.7603	0.3765	0.3543	0.050*
H20B	0.8244	0.3576	0.4368	0.050*
H20C	0.7574	0.4297	0.4252	0.050*
B1	0.79035 (13)	0.10736 (8)	0.68052 (9)	0.0149 (3)
C21	0.66500 (12)	0.07260 (7)	0.71036 (8)	0.0168 (2)
C22	0.62423 (14)	0.08440 (8)	0.78607 (9)	0.0240 (3)
H22	0.6663	0.1168	0.8183	0.029*
C23	0.52496 (15)	0.05059 (9)	0.81561 (10)	0.0292 (3)
H23	0.5006	0.0601	0.8671	0.035*
C24	0.46146 (14)	0.00298 (9)	0.76998 (11)	0.0292 (4)
H24	0.3943	−0.0208	0.7901	0.035*
C25	0.49725 (13)	−0.00932 (8)	0.69501 (10)	0.0251 (3)
H25	0.4538	−0.0413	0.6630	0.030*
C26	0.59709 (13)	0.02504 (7)	0.66600 (9)	0.0195 (3)
H26	0.6198	0.0158	0.6141	0.023*
C27	0.79551 (13)	0.18974 (7)	0.70191 (8)	0.0169 (3)
C28	0.90322 (14)	0.22802 (8)	0.70670 (8)	0.0207 (3)
H28	0.9785	0.2044	0.7061	0.025*
C29	0.90444 (16)	0.29928 (8)	0.71231 (9)	0.0256 (3)
H29	0.9796	0.3231	0.7147	0.031*
C30	0.79626 (17)	0.33553 (8)	0.71446 (9)	0.0278 (3)
H30	0.7966	0.3841	0.7168	0.033*
C31	0.68804 (16)	0.29965 (8)	0.71308 (9)	0.0256 (3)
H31	0.6134	0.3235	0.7161	0.031*
C32	0.68832 (14)	0.22831 (8)	0.70729 (8)	0.0208 (3)
H32	0.6129	0.2048	0.7070	0.025*
C33	0.79120 (11)	0.10059 (7)	0.58466 (8)	0.0148 (2)
C34	0.73321 (13)	0.14887 (7)	0.53542 (8)	0.0198 (3)
H34	0.6976	0.1879	0.5583	0.024*
C35	0.72561 (14)	0.14192 (8)	0.45425 (9)	0.0230 (3)
H35	0.6856	0.1759	0.4231	0.028*
C36	0.77648 (13)	0.08540 (8)	0.41903 (8)	0.0204 (3)
H36	0.7714	0.0802	0.3639	0.025*
C37	0.83468 (13)	0.03682 (7)	0.46558 (8)	0.0190 (3)
H37	0.8704	−0.0019	0.4422	0.023*
C38	0.84137 (12)	0.04421 (7)	0.54657 (8)	0.0167 (2)
H38	0.8813	0.0099	0.5771	0.020*
C39	0.90644 (12)	0.06510 (7)	0.71932 (8)	0.0167 (2)
C40	1.02475 (13)	0.07448 (7)	0.69319 (8)	0.0191 (3)
H40	1.0367	0.1059	0.6519	0.023*
C41	1.12499 (13)	0.03983 (8)	0.72513 (9)	0.0231 (3)
H41	1.2034	0.0485	0.7063	0.028*
C42	1.11045 (15)	−0.00742 (8)	0.78447 (11)	0.0289 (3)
H42	1.1784	−0.0314	0.8065	0.035*
C43	0.99522 (16)	−0.01911 (8)	0.81106 (11)	0.0302 (4)
H43	0.9838	−0.0517	0.8512	0.036*
C44	0.89578 (14)	0.01675 (8)	0.77911 (9)	0.0230 (3)
H44	0.8178	0.0081	0.7986	0.028*

Atomic displacement parameters (Å²) top

	U¹¹	U²²	U³³	U¹²	U¹³	U²³
Co1	0.01395 (9)	0.01203 (9)	0.01370 (9)	0.00031 (6)	0.00058 (6)	0.00048 (6)
N1	0.0174 (5)	0.0172 (5)	0.0158 (5)	0.0008 (4)	0.0009 (4)	−0.0002 (4)
N2	0.0189 (5)	0.0131 (5)	0.0187 (6)	0.0015 (4)	0.0020 (4)	−0.0001 (4)
N3	0.0184 (5)	0.0158 (5)	0.0164 (5)	−0.0007 (4)	0.0005 (4)	0.0001 (4)
N4	0.0172 (5)	0.0167 (5)	0.0185 (6)	−0.0028 (4)	0.0022 (4)	0.0008 (4)
N5	0.0156 (5)	0.0159 (5)	0.0187 (6)	0.0016 (4)	−0.0004 (4)	0.0014 (4)
N6	0.0146 (5)	0.0142 (5)	0.0157 (5)	0.0006 (4)	−0.0002 (4)	0.0011 (4)
C1	0.0293 (8)	0.0226 (7)	0.0210 (7)	0.0034 (6)	0.0018 (6)	−0.0043 (6)
C2	0.0451 (10)	0.0344 (9)	0.0177 (7)	0.0057 (7)	0.0008 (7)	−0.0061 (6)
C3	0.0343 (9)	0.0332 (8)	0.0167 (7)	0.0035 (7)	−0.0012 (6)	0.0030 (6)
C4	0.0197 (6)	0.0201 (6)	0.0173 (6)	0.0004 (5)	0.0007 (5)	0.0032 (5)
C5	0.0194 (6)	0.0171 (6)	0.0210 (7)	0.0013 (5)	0.0016 (5)	0.0056 (5)
C6	0.0248 (7)	0.0143 (6)	0.0235 (7)	0.0035 (5)	0.0030 (5)	−0.0014 (5)
C7	0.0240 (7)	0.0179 (6)	0.0194 (7)	0.0035 (5)	0.0030 (5)	−0.0030 (5)
C8	0.0240 (7)	0.0205 (6)	0.0208 (7)	−0.0063 (5)	−0.0013 (5)	−0.0029 (5)
C9	0.0226 (7)	0.0177 (6)	0.0246 (7)	−0.0060 (5)	0.0018 (5)	−0.0003 (5)
C10	0.0155 (6)	0.0252 (7)	0.0190 (6)	−0.0004 (5)	0.0019 (5)	0.0005 (5)
C11	0.0157 (6)	0.0218 (7)	0.0203 (7)	0.0034 (5)	0.0004 (5)	0.0005 (5)
C12	0.0221 (7)	0.0244 (7)	0.0255 (7)	0.0083 (6)	−0.0003 (6)	−0.0013 (6)
C13	0.0296 (8)	0.0172 (6)	0.0305 (8)	0.0071 (6)	−0.0023 (6)	−0.0013 (6)
C14	0.0225 (7)	0.0161 (6)	0.0240 (7)	0.0016 (5)	−0.0010 (5)	0.0018 (5)
C15	0.0180 (6)	0.0192 (6)	0.0172 (6)	−0.0014 (5)	−0.0028 (5)	0.0035 (5)
C16	0.0207 (7)	0.0227 (7)	0.0182 (7)	−0.0035 (5)	−0.0004 (5)	0.0052 (5)
C17	0.0176 (6)	0.0223 (7)	0.0224 (7)	−0.0029 (5)	0.0008 (5)	0.0024 (5)
C18	0.0162 (6)	0.0243 (7)	0.0208 (7)	−0.0011 (5)	−0.0044 (5)	0.0022 (5)
C19	0.0180 (6)	0.0188 (6)	0.0160 (6)	0.0002 (5)	−0.0015 (5)	0.0016 (5)
C20	0.0207 (7)	0.0480 (10)	0.0320 (9)	−0.0113 (7)	−0.0003 (6)	0.0091 (8)
B1	0.0138 (6)	0.0163 (6)	0.0146 (7)	0.0003 (5)	0.0007 (5)	−0.0004 (5)
C21	0.0142 (6)	0.0181 (6)	0.0182 (6)	0.0031 (5)	0.0009 (5)	0.0025 (5)
C22	0.0208 (7)	0.0314 (8)	0.0199 (7)	0.0002 (6)	0.0025 (5)	−0.0002 (6)
C23	0.0219 (7)	0.0401 (9)	0.0261 (8)	0.0028 (6)	0.0087 (6)	0.0058 (7)
C24	0.0154 (7)	0.0309 (8)	0.0419 (10)	0.0010 (6)	0.0082 (6)	0.0116 (7)
C25	0.0162 (6)	0.0187 (6)	0.0403 (9)	0.0001 (5)	0.0010 (6)	0.0016 (6)
C26	0.0174 (6)	0.0166 (6)	0.0247 (7)	0.0013 (5)	0.0026 (5)	0.0003 (5)
C27	0.0204 (6)	0.0187 (6)	0.0115 (6)	0.0015 (5)	−0.0006 (5)	0.0001 (5)
C28	0.0236 (7)	0.0205 (6)	0.0179 (6)	−0.0011 (5)	0.0012 (5)	−0.0003 (5)
C29	0.0352 (8)	0.0212 (7)	0.0204 (7)	−0.0071 (6)	0.0008 (6)	−0.0006 (5)
C30	0.0485 (10)	0.0171 (7)	0.0174 (7)	0.0023 (6)	−0.0028 (6)	−0.0008 (5)
C31	0.0353 (8)	0.0242 (7)	0.0168 (7)	0.0110 (6)	−0.0039 (6)	−0.0033 (5)
C32	0.0236 (7)	0.0226 (7)	0.0160 (6)	0.0040 (5)	−0.0030 (5)	−0.0027 (5)
C33	0.0126 (5)	0.0170 (6)	0.0150 (6)	−0.0024 (4)	0.0006 (4)	−0.0005 (5)
C34	0.0211 (6)	0.0210 (6)	0.0171 (6)	0.0035 (5)	0.0000 (5)	−0.0006 (5)
C35	0.0260 (7)	0.0255 (7)	0.0172 (7)	0.0035 (6)	−0.0024 (5)	0.0022 (5)
C36	0.0231 (7)	0.0236 (7)	0.0146 (6)	−0.0040 (5)	0.0011 (5)	−0.0013 (5)
C37	0.0220 (7)	0.0169 (6)	0.0184 (6)	−0.0040 (5)	0.0029 (5)	−0.0028 (5)
C38	0.0182 (6)	0.0152 (6)	0.0166 (6)	−0.0024 (5)	0.0007 (5)	0.0002 (5)
C39	0.0167 (6)	0.0169 (6)	0.0165 (6)	0.0005 (5)	−0.0009 (5)	−0.0030 (5)
C40	0.0185 (6)	0.0229 (6)	0.0158 (6)	0.0016 (5)	0.0008 (5)	−0.0042 (5)
C41	0.0171 (6)	0.0262 (7)	0.0260 (7)	0.0042 (5)	0.0002 (5)	−0.0083 (6)
C42	0.0239 (7)	0.0239 (7)	0.0381 (9)	0.0074 (6)	−0.0083 (6)	−0.0011 (6)
C43	0.0297 (8)	0.0225 (7)	0.0379 (9)	0.0008 (6)	−0.0063 (7)	0.0104 (7)
C44	0.0201 (7)	0.0202 (7)	0.0284 (8)	−0.0010 (5)	−0.0027 (6)	0.0045 (6)

Geometric parameters (Å, º) top

Co1—N4	1.8952 (12)	C19—H19	0.9500
Co1—N1	1.9043 (12)	C20—H20A	0.9800
Co1—N2	1.9156 (12)	C20—H20B	0.9800
Co1—N5	1.9320 (12)	C20—H20C	0.9800
Co1—N6	1.9581 (12)	B1—C21	1.640 (2)
Co1—N3	2.0367 (12)	B1—C39	1.644 (2)
N1—C1	1.3408 (18)	B1—C33	1.649 (2)
N1—C4	1.3845 (18)	B1—C27	1.653 (2)
N2—C5	1.2990 (19)	C21—C26	1.401 (2)
N2—C6	1.4595 (18)	C21—C22	1.408 (2)
N3—C7	1.4982 (18)	C22—C23	1.391 (2)
N3—C8	1.5077 (18)	C22—H22	0.9500
N3—H3N	0.86 (2)	C23—C24	1.389 (3)
N4—C10	1.3030 (18)	C23—H23	0.9500
N4—C9	1.4537 (18)	C24—C25	1.379 (2)
N5—C14	1.3460 (18)	C24—H24	0.9500
N5—C11	1.3888 (18)	C25—C26	1.398 (2)
N6—C19	1.3429 (17)	C25—H25	0.9500
N6—C15	1.3488 (17)	C26—H26	0.9500
C1—C2	1.400 (2)	C27—C28	1.404 (2)
C1—H1	0.9500	C27—C32	1.409 (2)
C2—C3	1.391 (2)	C28—C29	1.397 (2)
C2—H2	0.9500	C28—H28	0.9500
C3—C4	1.397 (2)	C29—C30	1.390 (2)
C3—H3	0.9500	C29—H29	0.9500
C4—C5	1.410 (2)	C30—C31	1.384 (2)
C5—H5	0.9500	C30—H30	0.9500
C6—C7	1.520 (2)	C31—C32	1.399 (2)
C6—H6A	0.9900	C31—H31	0.9500
C6—H6B	0.9900	C32—H32	0.9500
C7—H7A	0.9900	C33—C34	1.4044 (19)
C7—H7B	0.9900	C33—C38	1.4055 (18)
C8—C9	1.528 (2)	C34—C35	1.397 (2)
C8—H8A	0.9900	C34—H34	0.9500
C8—H8B	0.9900	C35—C36	1.388 (2)
C9—H9A	0.9900	C35—H35	0.9500
C9—H9B	0.9900	C36—C37	1.383 (2)
C10—C11	1.410 (2)	C36—H36	0.9500
C10—H10	0.9500	C37—C38	1.3948 (19)
C11—C12	1.399 (2)	C37—H37	0.9500
C12—C13	1.392 (2)	C38—H38	0.9500
C12—H12	0.9500	C39—C44	1.403 (2)
C13—C14	1.403 (2)	C39—C40	1.4079 (19)
C13—H13	0.9500	C40—C41	1.392 (2)
C14—H14	0.9500	C40—H40	0.9500
C15—C16	1.3768 (19)	C41—C42	1.388 (2)
C15—H15	0.9500	C41—H41	0.9500
C16—C17	1.390 (2)	C42—C43	1.386 (2)
C16—H16	0.9500	C42—H42	0.9500
C17—C18	1.388 (2)	C43—C44	1.397 (2)
C17—C20	1.500 (2)	C43—H43	0.9500
C18—C19	1.383 (2)	C44—H44	0.9500
C18—H18	0.9500

N4—Co1—N1	92.00 (5)	C17—C16—H16	120.1
N4—Co1—N2	94.98 (5)	C18—C17—C16	117.14 (13)
N1—Co1—N2	82.11 (5)	C18—C17—C20	121.94 (14)
N4—Co1—N5	82.22 (5)	C16—C17—C20	120.92 (14)
N1—Co1—N5	88.67 (5)	C19—C18—C17	120.15 (13)
N2—Co1—N5	170.28 (5)	C19—C18—H18	119.9
N4—Co1—N6	170.80 (5)	C17—C18—H18	119.9
N1—Co1—N6	94.32 (5)	N6—C19—C18	122.55 (13)
N2—Co1—N6	92.51 (5)	N6—C19—H19	118.7
N5—Co1—N6	91.24 (5)	C18—C19—H19	118.7
N4—Co1—N3	82.26 (5)	C17—C20—H20A	109.5
N1—Co1—N3	161.96 (5)	C17—C20—H20B	109.5
N2—Co1—N3	81.38 (5)	H20A—C20—H20B	109.5
N5—Co1—N3	107.33 (5)	C17—C20—H20C	109.5
N6—Co1—N3	93.61 (5)	H20A—C20—H20C	109.5
C1—N1—C4	107.35 (12)	H20B—C20—H20C	109.5
C1—N1—Co1	139.14 (11)	C21—B1—C39	108.60 (11)
C4—N1—Co1	113.49 (9)	C21—B1—C33	108.30 (11)
C5—N2—C6	124.39 (12)	C39—B1—C33	109.21 (11)
C5—N2—Co1	116.03 (10)	C21—B1—C27	110.93 (11)
C6—N2—Co1	119.57 (9)	C39—B1—C27	112.38 (11)
C7—N3—C8	112.61 (11)	C33—B1—C27	107.33 (11)
C7—N3—Co1	106.46 (9)	C26—C21—C22	115.21 (13)
C8—N3—Co1	109.79 (9)	C26—C21—B1	123.11 (12)
C7—N3—H3N	105.5 (12)	C22—C21—B1	121.45 (13)
C8—N3—H3N	105.4 (12)	C23—C22—C21	122.73 (15)
Co1—N3—H3N	117.2 (13)	C23—C22—H22	118.6
C10—N4—C9	121.58 (13)	C21—C22—H22	118.6
C10—N4—Co1	115.59 (10)	C24—C23—C22	120.09 (15)
C9—N4—Co1	114.36 (9)	C24—C23—H23	120.0
C14—N5—C11	107.02 (12)	C22—C23—H23	120.0
C14—N5—Co1	136.85 (10)	C25—C24—C23	119.04 (14)
C11—N5—Co1	110.82 (9)	C25—C24—H24	120.5
C19—N6—C15	117.30 (12)	C23—C24—H24	120.5
C19—N6—Co1	123.13 (9)	C24—C25—C26	120.30 (15)
C15—N6—Co1	119.57 (9)	C24—C25—H25	119.8
N1—C1—C2	109.56 (14)	C26—C25—H25	119.8
N1—C1—H1	125.2	C25—C26—C21	122.61 (14)
C2—C1—H1	125.2	C25—C26—H26	118.7
C3—C2—C1	107.70 (14)	C21—C26—H26	118.7
C3—C2—H2	126.2	C28—C27—C32	114.92 (13)
C1—C2—H2	126.2	C28—C27—B1	123.68 (12)
C2—C3—C4	105.77 (14)	C32—C27—B1	120.97 (12)
C2—C3—H3	127.1	C29—C28—C27	122.81 (14)
C4—C3—H3	127.1	C29—C28—H28	118.6
N1—C4—C3	109.61 (13)	C27—C28—H28	118.6
N1—C4—C5	113.57 (13)	C30—C29—C28	120.31 (15)
C3—C4—C5	136.77 (14)	C30—C29—H29	119.8
N2—C5—C4	114.73 (13)	C28—C29—H29	119.8
N2—C5—H5	122.6	C31—C30—C29	118.81 (14)
C4—C5—H5	122.6	C31—C30—H30	120.6
N2—C6—C7	105.73 (11)	C29—C30—H30	120.6
N2—C6—H6A	110.6	C30—C31—C32	120.17 (15)
C7—C6—H6A	110.6	C30—C31—H31	119.9
N2—C6—H6B	110.6	C32—C31—H31	119.9
C7—C6—H6B	110.6	C31—C32—C27	122.88 (15)
H6A—C6—H6B	108.7	C31—C32—H32	118.6
N3—C7—C6	109.11 (11)	C27—C32—H32	118.6
N3—C7—H7A	109.9	C34—C33—C38	115.27 (12)
C6—C7—H7A	109.9	C34—C33—B1	121.68 (12)
N3—C7—H7B	109.9	C38—C33—B1	122.88 (12)
C6—C7—H7B	109.9	C35—C34—C33	122.80 (13)
H7A—C7—H7B	108.3	C35—C34—H34	118.6
N3—C8—C9	109.74 (12)	C33—C34—H34	118.6
N3—C8—H8A	109.7	C36—C35—C34	120.02 (14)
C9—C8—H8A	109.7	C36—C35—H35	120.0
N3—C8—H8B	109.7	C34—C35—H35	120.0
C9—C8—H8B	109.7	C37—C36—C35	118.88 (13)
H8A—C8—H8B	108.2	C37—C36—H36	120.6
N4—C9—C8	103.34 (11)	C35—C36—H36	120.6
N4—C9—H9A	111.1	C36—C37—C38	120.58 (13)
C8—C9—H9A	111.1	C36—C37—H37	119.7
N4—C9—H9B	111.1	C38—C37—H37	119.7
C8—C9—H9B	111.1	C37—C38—C33	122.45 (13)
H9A—C9—H9B	109.1	C37—C38—H38	118.8
N4—C10—C11	114.98 (13)	C33—C38—H38	118.8
N4—C10—H10	122.5	C44—C39—C40	115.12 (13)
C11—C10—H10	122.5	C44—C39—B1	123.30 (12)
N5—C11—C12	109.62 (13)	C40—C39—B1	121.57 (12)
N5—C11—C10	112.69 (12)	C41—C40—C39	122.96 (14)
C12—C11—C10	137.68 (14)	C41—C40—H40	118.5
C13—C12—C11	106.03 (13)	C39—C40—H40	118.5
C13—C12—H12	127.0	C42—C41—C40	120.02 (14)
C11—C12—H12	127.0	C42—C41—H41	120.0
C12—C13—C14	107.46 (13)	C40—C41—H41	120.0
C12—C13—H13	126.3	C43—C42—C41	118.93 (14)
C14—C13—H13	126.3	C43—C42—H42	120.5
N5—C14—C13	109.86 (13)	C41—C42—H42	120.5
N5—C14—H14	125.1	C42—C43—C44	120.34 (15)
C13—C14—H14	125.1	C42—C43—H43	119.8
N6—C15—C16	123.10 (13)	C44—C43—H43	119.8
N6—C15—H15	118.4	C43—C44—C39	122.60 (14)
C16—C15—H15	118.4	C43—C44—H44	118.7
C15—C16—C17	119.72 (13)	C39—C44—H44	118.7
C15—C16—H16	120.1

N4—Co1—N1—C1	−85.68 (16)	C14—N5—C11—C12	0.99 (17)
N2—Co1—N1—C1	179.57 (17)	Co1—N5—C11—C12	159.84 (10)
N5—Co1—N1—C1	−3.51 (16)	C14—N5—C11—C10	−179.68 (13)
N6—Co1—N1—C1	87.63 (16)	Co1—N5—C11—C10	−20.82 (15)
N3—Co1—N1—C1	−156.52 (16)	N4—C10—C11—N5	14.25 (19)
N4—Co1—N1—C4	92.32 (10)	N4—C10—C11—C12	−166.68 (17)
N2—Co1—N1—C4	−2.43 (10)	N5—C11—C12—C13	−0.50 (17)
N5—Co1—N1—C4	174.49 (10)	C10—C11—C12—C13	−179.59 (18)
N6—Co1—N1—C4	−94.37 (10)	C11—C12—C13—C14	−0.16 (18)
N3—Co1—N1—C4	21.5 (2)	C11—N5—C14—C13	−1.09 (17)
N4—Co1—N2—C5	−89.44 (11)	Co1—N5—C14—C13	−151.55 (12)
N1—Co1—N2—C5	1.90 (10)	C12—C13—C14—N5	0.79 (18)
N6—Co1—N2—C5	95.92 (11)	C19—N6—C15—C16	2.0 (2)
N3—Co1—N2—C5	−170.81 (11)	Co1—N6—C15—C16	−177.98 (11)
N4—Co1—N2—C6	90.25 (11)	N6—C15—C16—C17	−0.8 (2)
N1—Co1—N2—C6	−178.42 (11)	C15—C16—C17—C18	−1.2 (2)
N6—Co1—N2—C6	−84.40 (11)	C15—C16—C17—C20	179.41 (15)
N3—Co1—N2—C6	8.88 (10)	C16—C17—C18—C19	1.9 (2)
N4—Co1—N3—C7	−125.83 (9)	C20—C17—C18—C19	−178.75 (15)
N1—Co1—N3—C7	−53.5 (2)	C15—N6—C19—C18	−1.3 (2)
N2—Co1—N3—C7	−29.56 (9)	Co1—N6—C19—C18	178.70 (11)
N5—Co1—N3—C7	154.86 (9)	C17—C18—C19—N6	−0.7 (2)
N6—Co1—N3—C7	62.43 (9)	C39—B1—C21—C26	−97.53 (15)
N4—Co1—N3—C8	−3.66 (9)	C33—B1—C21—C26	20.96 (17)
N1—Co1—N3—C8	68.66 (19)	C27—B1—C21—C26	138.50 (13)
N2—Co1—N3—C8	92.61 (10)	C39—B1—C21—C22	76.73 (16)
N5—Co1—N3—C8	−82.97 (10)	C33—B1—C21—C22	−164.78 (13)
N6—Co1—N3—C8	−175.40 (9)	C27—B1—C21—C22	−47.24 (17)
N1—Co1—N4—C10	79.29 (11)	C26—C21—C22—C23	1.0 (2)
N2—Co1—N4—C10	161.54 (11)	B1—C21—C22—C23	−173.64 (14)
N5—Co1—N4—C10	−9.10 (11)	C21—C22—C23—C24	−0.1 (2)
N3—Co1—N4—C10	−117.88 (11)	C22—C23—C24—C25	−0.9 (2)
N1—Co1—N4—C9	−132.03 (10)	C23—C24—C25—C26	0.9 (2)
N2—Co1—N4—C9	−49.77 (10)	C24—C25—C26—C21	0.2 (2)
N5—Co1—N4—C9	139.59 (10)	C22—C21—C26—C25	−1.1 (2)
N3—Co1—N4—C9	30.80 (10)	B1—C21—C26—C25	173.48 (13)
N4—Co1—N5—C14	166.04 (16)	C21—B1—C27—C28	159.16 (13)
N1—Co1—N5—C14	73.84 (15)	C39—B1—C27—C28	37.37 (18)
N6—Co1—N5—C14	−20.45 (15)	C33—B1—C27—C28	−82.71 (15)
N3—Co1—N5—C14	−114.62 (15)	C21—B1—C27—C32	−28.74 (17)
N4—Co1—N5—C11	16.33 (10)	C39—B1—C27—C32	−150.53 (13)
N1—Co1—N5—C11	−75.87 (10)	C33—B1—C27—C32	89.39 (14)
N6—Co1—N5—C11	−170.16 (10)	C32—C27—C28—C29	−3.2 (2)
N3—Co1—N5—C11	95.66 (10)	B1—C27—C28—C29	169.37 (13)
N1—Co1—N6—C19	28.99 (11)	C27—C28—C29—C30	0.9 (2)
N2—Co1—N6—C19	−53.28 (11)	C28—C29—C30—C31	1.7 (2)
N5—Co1—N6—C19	117.75 (11)	C29—C30—C31—C32	−1.9 (2)
N3—Co1—N6—C19	−134.79 (11)	C30—C31—C32—C27	−0.6 (2)
N1—Co1—N6—C15	−151.02 (11)	C28—C27—C32—C31	3.0 (2)
N2—Co1—N6—C15	126.70 (11)	B1—C27—C32—C31	−169.73 (13)
N5—Co1—N6—C15	−62.27 (11)	C21—B1—C33—C34	85.08 (15)
N3—Co1—N6—C15	45.19 (11)	C39—B1—C33—C34	−156.82 (12)
C4—N1—C1—C2	0.81 (18)	C27—B1—C33—C34	−34.75 (16)
Co1—N1—C1—C2	178.89 (13)	C21—B1—C33—C38	−90.05 (14)
N1—C1—C2—C3	−0.6 (2)	C39—B1—C33—C38	28.05 (17)
C1—C2—C3—C4	0.1 (2)	C27—B1—C33—C38	150.13 (12)
C1—N1—C4—C3	−0.77 (17)	C38—C33—C34—C35	−0.1 (2)
Co1—N1—C4—C3	−179.40 (11)	B1—C33—C34—C35	−175.60 (13)
C1—N1—C4—C5	−178.76 (13)	C33—C34—C35—C36	0.1 (2)
Co1—N1—C4—C5	2.61 (15)	C34—C35—C36—C37	−0.3 (2)
C2—C3—C4—N1	0.43 (19)	C35—C36—C37—C38	0.5 (2)
C2—C3—C4—C5	177.73 (18)	C36—C37—C38—C33	−0.5 (2)
C6—N2—C5—C4	179.39 (13)	C34—C33—C38—C37	0.32 (19)
Co1—N2—C5—C4	−0.94 (16)	B1—C33—C38—C37	175.74 (12)
N1—C4—C5—N2	−1.10 (19)	C21—B1—C39—C44	−11.12 (18)
C3—C4—C5—N2	−178.34 (17)	C33—B1—C39—C44	−129.03 (14)
C5—N2—C6—C7	−166.34 (13)	C27—B1—C39—C44	111.99 (15)
Co1—N2—C6—C7	14.00 (15)	C21—B1—C39—C40	167.74 (12)
C8—N3—C7—C6	−74.96 (14)	C33—B1—C39—C40	49.83 (16)
Co1—N3—C7—C6	45.40 (13)	C27—B1—C39—C40	−69.15 (16)
N2—C6—C7—N3	−38.32 (15)	C44—C39—C40—C41	−1.5 (2)
C7—N3—C8—C9	96.87 (14)	B1—C39—C40—C41	179.59 (13)
Co1—N3—C8—C9	−21.57 (14)	C39—C40—C41—C42	1.3 (2)
C10—N4—C9—C8	97.92 (15)	C40—C41—C42—C43	−0.1 (2)
Co1—N4—C9—C8	−48.69 (13)	C41—C42—C43—C44	−0.7 (3)
N3—C8—C9—N4	42.79 (15)	C42—C43—C44—C39	0.5 (3)
C9—N4—C10—C11	−146.56 (13)	C40—C39—C44—C43	0.6 (2)
Co1—N4—C10—C11	−0.32 (17)	B1—C39—C44—C43	179.51 (14)

Experimental details

Crystal data
Chemical formula	[Co(C₁₄H₁₇N₅)(C₆H₇N)](C₂₄H₂₀B)
M_r	726.59
Crystal system, space group	Monoclinic, P2₁/n
Temperature (K)	100
a, b, c (Å)	11.0332 (16), 19.559 (3), 17.138 (3)
β (°)	92.164 (2)
V (Å³)	3695.7 (9)
Z	4
Radiation type	Mo Kα
µ (mm⁻¹)	0.51
Crystal size (mm)	0.52 × 0.46 × 0.35

Data collection
Diffractometer	Bruker SMART APEX CCD diffractometer
Absorption correction	Multi-scan (SADABS; Bruker, 2003)
T_min, T_max	0.71, 0.84
No. of measured, independent and observed [I > 2σ(I)] reflections	66110, 10797, 8767
R_int	0.036
(sin θ/λ)_max (Å⁻¹)	0.704

Refinement
R[F² > 2σ(F²)], wR(F²), S	0.038, 0.104, 1.07
No. of reflections	10797
No. of parameters	474
H-atom treatment	H atoms treated by a mixture of independent and constrained refinement
Δρ_max, Δρ_min (e Å⁻³)	0.57, −0.22

Computer programs: SMART (Bruker, 2003), SAINT (Bruker, 2003), SAINT and XPREP (Bruker, 2003), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), SHELXTL (Sheldrick, 2008).

Acknowledgements

Partial support of this work by the Isfahan University of Technology Research Council is gratefully acknowledged.

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