metal-organic compounds
[N,N′-Bis(2,6-diisopropylphenyl)pentane-2,4-diamine(1–)-2κ2N,N′]-μ2-chlorido-1:2κ2Cl:Cl-chlorido-2κCl-bis(1,2-dimethoxyethane-1κ2O,O′)iron(II)lithium
aChemical Faculty, Gdansk University of Technology, Narutowicza 11/12, Gdansk PL-80233, Poland
*Correspondence e-mail: lukas_ponikiewski@vp.pl
In the title compound, [FeLi(C29H41N2)Cl2(C4H10O2)2], the FeII atom is coordinated by two N and two Cl atoms, generating a distorted FeN2Cl2 tetrahedral geometry. Additionally, one of the chloride atoms bridges to a lithium ion, which is solvated by two dimethoxyethane molecules and is coordinated in a distorted trigonal-bipyramidal environment. The central Fe, Cl (× 2) and Li atoms are coplanar with a maximum deviation of 0.034 Å.
Related literature
For the et al. (2001); Evans et al. (2003). For a related iron(II) structure, see: Sciarone et al. (2006). For details of the preparation, see: Kovacs et al. (1996); Panda et al. (2002). For related syntheses, see: Baum et al. (2004).
of the 2,4-bis(2,6-diisopropylphenylimido)pentane ligand, see: SmithExperimental
Crystal data
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Refinement
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Data collection: X-AREA (Stoe & Cie, 1997); cell X-AREA; data reduction: X-RED; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: ORTEP-3 (Farrugia, 1997); software used to prepare material for publication: WinGX32 (Farrugia, 1999).
Supporting information
https://doi.org/10.1107/S1600536810018222/kp2260sup1.cif
contains datablocks I, global. DOI:Structure factors: contains datablock I. DOI: https://doi.org/10.1107/S1600536810018222/kp2260Isup2.hkl
This work was carried out using the standard vacuum-nitrogen line and Schlenk techiques. [LFeCl2] (L = {(2,6-iPr2H3C6)N(CH3)C}2CH]- and tBu2P—P(SiMe3)Li.2DME were prepared according to the procedure in the literature (Panda et al. 2002; Kovacs et al. 1996). Solution of 0.412 g (1.03 mmol) tBu2P—P(SiMe3)Li.2THF in 2 ml DME was addded dropwise into solution of 0.303 g (0.515 mmol) [LFeCl2] (L = [{2,6-iPr2H3C6)N(CH3)C}2CH-]) in 2 ml of DME at 243 K. The mixture immediately turned orange. The resultant solution was warmed to room temperature. Then the volume was reduced to about 2 ml and the concentrated solution stored for a few days at 243 K and the solution yielded orange crystals of (I).
All H atoms were fixed geometrically and treated as riding with C—H = 0.95 Å (aromatic), 0.99 Å (methylene), 0.98 Å (methyl) and 1.00 Å (methine) with Uiso(H) = 1.2Ueq ( aromatic, methine, methylene) and Uiso(H) = 1.5Ueq (methyl).
In the course of our studies on phosphorus-iron chemistry, we have syntesised the title complex of iron(II) [LFeCl{µ-Cl}Li(DME)2] (L = [{(2,6-iPr2H3C6)NC(CH3)}2CH]-) (1). This compound turned to be the main product in reaction tBu2P—P(SiMe3)Li.2THF with [LFeCl2] (L = {(2,6-iPr2H3C6)N(CH3)C}2CH]- (molar ratio 2:1 in DME). We observed reduction of starting complex of iron(III) to iron(II) by lithium salt of diphosphane. Simultaneously polyphosphorous compounds were formed. Similar reactions were observed for TiIV compoudns (Baum et al. 2004). [Cp2TiCl2](Cp = C5H5) reacts with tBu2P—P(Li)—PtBu2 or with tBu2P—P(SiMe3)Li, respectively yielding Ti(III) complex [Cp2Ti{µ-Cl)2Li(THF)2].
(I) crystallizes with one molecule in the
(Fig 1). The iron centre is tetrahedrally coordinated by a chelating amidinate ligand and two chloride atoms. One of them bridges to a lithium ion, which is solvated by two DME molecules. In contrast to the related complexes of iron(II) that includes 2,4-bis(2,6-diisopropylphenylimido) pentane ligand, with both chloride atoms bridging FeII and Li centres, the presented complex displays one bridging and one terminal chloride atom. The Cl—Fe—Cl angle value in this compound is about 7° wider than analogous one in the iron (II) complexes with 2,4-bis(2,6-diisopropylphenylimido) pentane ligands, and two bridging chloride atoms (Smith et al.2001). In comparison with complex [{PhC(N-2,6-iPr2C6H3)2}FeCl(µ-Cl)Li(THF)3] the Cl—N—Cl angle is about 15° smaller (Sciarone et al. 2006). The N(1)—Fe(1)—N(2) bond angle is 92.46 (9)°, while the N(1)—Fe(1)—Cl(1), N(1)—Fe(1)—Cl(2), N(2)—Fe(1)—Cl(1), N(2)—Fe(1)—Cl(2) bond angles are - 117.92 (6)°, 114.82 (6)°, 111.77 (6)°, 116.86 (6)°, respectively. The Fe—N and Fe—Cl bond lengths do not differ significantly from typical values (Evans et al. 2003).For the
of the 2,4-bis(2,6-diisopropylphenylimido)pentane ligand, see: Smith et al. (2001); Evans et al. (2003). For a related iron(II) structure, see: Sciarone et al. (2006). For details of the preparation, see: Kovacs et al. (1996); Panda et al. (2002). For related syntheses, see: Baum et al. (2004);Data collection: X-AREA (Stoe & Cie, 1997); cell
X-AREA (Stoe & Cie, 1997); data reduction: X-RED (Stoe & Cie, 1997); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: ORTEP-3 (Farrugia, 1997); software used to prepare material for publication: WinGX32 (Farrugia, 1999).Fig. 1. The molecular structure of the title molecule with the atom-numbering. Displacement ellipsoids are drawn at the 30% probability level. |
[FeLi(C29H41N2)Cl2(C4H10O2)2] | F(000) = 1568 |
Mr = 731.57 | Dx = 1.212 Mg m−3 |
Monoclinic, P21/c | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: -P 2ybc | Cell parameters from 13275 reflections |
a = 10.1467 (5) Å | θ = 2.3–28.8° |
b = 19.8186 (10) Å | µ = 0.55 mm−1 |
c = 20.6289 (11) Å | T = 150 K |
β = 104.962 (4)° | Block, yellow |
V = 4007.7 (4) Å3 | 0.27 × 0.24 × 0.13 mm |
Z = 4 |
Oxford Diffraction Xcalibur Sapphire2 (large Be window) diffractometer | 7045 independent reflections |
Graphite monochromator | 4320 reflections with I > 2σ(I) |
Detector resolution: 8.1883 pixels mm-1 | Rint = 0.042 |
ω scans | θmax = 25°, θmin = 2.3° |
Absorption correction: multi-scan (CrysAlis PRO; Oxford Diffraction, 2009) | h = −11→12 |
Tmin = 0.983, Tmax = 1 | k = −23→21 |
23717 measured reflections | l = −24→24 |
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)] = 0.041 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.108 | H-atom parameters constrained |
S = 0.89 | w = 1/[σ2(Fo2) + (0.0623P)2] where P = (Fo2 + 2Fc2)/3 |
7045 reflections | (Δ/σ)max < 0.001 |
438 parameters | Δρmax = 1.63 e Å−3 |
0 restraints | Δρmin = −0.29 e Å−3 |
[FeLi(C29H41N2)Cl2(C4H10O2)2] | V = 4007.7 (4) Å3 |
Mr = 731.57 | Z = 4 |
Monoclinic, P21/c | Mo Kα radiation |
a = 10.1467 (5) Å | µ = 0.55 mm−1 |
b = 19.8186 (10) Å | T = 150 K |
c = 20.6289 (11) Å | 0.27 × 0.24 × 0.13 mm |
β = 104.962 (4)° |
Oxford Diffraction Xcalibur Sapphire2 (large Be window) diffractometer | 7045 independent reflections |
Absorption correction: multi-scan (CrysAlis PRO; Oxford Diffraction, 2009) | 4320 reflections with I > 2σ(I) |
Tmin = 0.983, Tmax = 1 | Rint = 0.042 |
23717 measured reflections |
R[F2 > 2σ(F2)] = 0.041 | 0 restraints |
wR(F2) = 0.108 | H-atom parameters constrained |
S = 0.89 | Δρmax = 1.63 e Å−3 |
7045 reflections | Δρmin = −0.29 e Å−3 |
438 parameters |
Experimental. CrysAlisPro, Oxford Diffraction Ltd., Version 1.171.33.52 (release 06-11-2009 CrysAlis171 .NET) (compiled Nov 6 2009,16:24:50) Empirical absorption correction using spherical harmonics, implemented in SCALE3 ABSPACK scaling algorithm. |
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. |
x | y | z | Uiso*/Ueq | ||
Fe1 | 0.31716 (4) | 0.24720 (2) | 0.352332 (17) | 0.02132 (12) | |
Cl1 | 0.08335 (7) | 0.25572 (4) | 0.32310 (4) | 0.0417 (2) | |
Cl2 | 0.37292 (6) | 0.25434 (4) | 0.25030 (3) | 0.03012 (17) | |
O1 | 0.11678 (19) | 0.15479 (10) | 0.17693 (9) | 0.0342 (5) | |
O2 | −0.07181 (18) | 0.24976 (11) | 0.14320 (9) | 0.0348 (5) | |
O3 | 0.1702 (2) | 0.26965 (10) | 0.08043 (9) | 0.0332 (5) | |
O4 | 0.13980 (19) | 0.36490 (10) | 0.16866 (9) | 0.0305 (5) | |
N1 | 0.4027 (2) | 0.16872 (11) | 0.41070 (10) | 0.0210 (5) | |
N2 | 0.4048 (2) | 0.31567 (11) | 0.42353 (10) | 0.0214 (5) | |
C1 | 0.4141 (3) | 0.10469 (13) | 0.37950 (12) | 0.0210 (6) | |
C2 | 0.5305 (3) | 0.09225 (14) | 0.35722 (13) | 0.0262 (7) | |
C3 | 0.5429 (3) | 0.02954 (15) | 0.32907 (13) | 0.0319 (7) | |
H3A | 0.6225 | 0.0199 | 0.3146 | 0.038* | |
C4 | 0.4431 (3) | −0.01886 (15) | 0.32163 (13) | 0.0323 (7) | |
H4A | 0.4545 | −0.0616 | 0.3029 | 0.039* | |
C5 | 0.3266 (3) | −0.00494 (14) | 0.34146 (12) | 0.0287 (7) | |
H5A | 0.2571 | −0.0382 | 0.3356 | 0.034* | |
C6 | 0.3087 (3) | 0.05698 (14) | 0.37007 (12) | 0.0241 (6) | |
C7 | 0.6441 (3) | 0.14354 (15) | 0.36438 (14) | 0.0322 (7) | |
H7A | 0.6075 | 0.188 | 0.3746 | 0.039* | |
C8 | 0.7677 (3) | 0.12627 (19) | 0.42361 (15) | 0.0479 (9) | |
H8A | 0.7398 | 0.1275 | 0.4657 | 0.072* | |
H8B | 0.8404 | 0.1593 | 0.4256 | 0.072* | |
H8C | 0.8011 | 0.081 | 0.4171 | 0.072* | |
C9 | 0.6902 (3) | 0.15230 (17) | 0.30007 (15) | 0.0401 (8) | |
H9A | 0.6128 | 0.1672 | 0.2638 | 0.06* | |
H9B | 0.7245 | 0.1092 | 0.2879 | 0.06* | |
H9C | 0.7629 | 0.1862 | 0.3073 | 0.06* | |
C10 | 0.1767 (3) | 0.06997 (15) | 0.38942 (13) | 0.0282 (7) | |
H10A | 0.184 | 0.1153 | 0.4115 | 0.034* | |
C11 | 0.0567 (3) | 0.07233 (17) | 0.32694 (15) | 0.0401 (8) | |
H11A | 0.0728 | 0.1076 | 0.2966 | 0.06* | |
H11B | −0.0273 | 0.0823 | 0.3401 | 0.06* | |
H11C | 0.0478 | 0.0286 | 0.3041 | 0.06* | |
C12 | 0.1497 (3) | 0.01756 (16) | 0.43954 (15) | 0.0419 (8) | |
H12A | 0.2275 | 0.0163 | 0.4792 | 0.063* | |
H12B | 0.1373 | −0.0271 | 0.4183 | 0.063* | |
H12C | 0.0671 | 0.03 | 0.453 | 0.063* | |
C13 | 0.4199 (3) | 0.38317 (14) | 0.40014 (12) | 0.0219 (6) | |
C14 | 0.3225 (3) | 0.43371 (14) | 0.40092 (12) | 0.0240 (6) | |
C15 | 0.3387 (3) | 0.49617 (14) | 0.37277 (12) | 0.0271 (7) | |
H15A | 0.2735 | 0.5307 | 0.3722 | 0.033* | |
C16 | 0.4468 (3) | 0.50898 (14) | 0.34572 (13) | 0.0288 (7) | |
H16A | 0.4558 | 0.5519 | 0.3269 | 0.035* | |
C17 | 0.5417 (3) | 0.45944 (15) | 0.34609 (13) | 0.0301 (7) | |
H17A | 0.6166 | 0.4689 | 0.3278 | 0.036* | |
C18 | 0.5309 (3) | 0.39550 (14) | 0.37261 (13) | 0.0257 (7) | |
C19 | 0.2041 (3) | 0.42393 (15) | 0.43281 (13) | 0.0309 (7) | |
H19A | 0.2125 | 0.378 | 0.4536 | 0.037* | |
C20 | 0.2098 (3) | 0.47611 (17) | 0.48840 (15) | 0.0435 (8) | |
H20A | 0.2999 | 0.4747 | 0.5204 | 0.065* | |
H20B | 0.1395 | 0.4657 | 0.5117 | 0.065* | |
H20C | 0.1937 | 0.5213 | 0.4686 | 0.065* | |
C21 | 0.0649 (3) | 0.42854 (16) | 0.38159 (15) | 0.0405 (8) | |
H21A | 0.0539 | 0.3903 | 0.3506 | 0.061* | |
H21B | 0.0594 | 0.4708 | 0.3563 | 0.061* | |
H21C | −0.0076 | 0.4275 | 0.4051 | 0.061* | |
C22 | 0.6375 (3) | 0.34182 (15) | 0.37306 (14) | 0.0311 (7) | |
H22A | 0.5903 | 0.2972 | 0.3694 | 0.037* | |
C23 | 0.7495 (3) | 0.34164 (19) | 0.43980 (16) | 0.0496 (9) | |
H23A | 0.7085 | 0.3318 | 0.4769 | 0.074* | |
H23B | 0.7937 | 0.386 | 0.4468 | 0.074* | |
H23C | 0.8176 | 0.307 | 0.4381 | 0.074* | |
C24 | 0.7036 (3) | 0.34645 (17) | 0.31492 (15) | 0.0409 (8) | |
H24A | 0.6332 | 0.3427 | 0.2724 | 0.061* | |
H24B | 0.7697 | 0.3097 | 0.3182 | 0.061* | |
H24C | 0.7504 | 0.3899 | 0.3166 | 0.061* | |
C25 | 0.4912 (3) | 0.11037 (15) | 0.51887 (13) | 0.0319 (7) | |
H25A | 0.5607 | 0.0865 | 0.5023 | 0.048* | |
H25B | 0.4121 | 0.0809 | 0.5152 | 0.048* | |
H25C | 0.5292 | 0.1229 | 0.566 | 0.048* | |
C26 | 0.4476 (3) | 0.17321 (14) | 0.47756 (12) | 0.0231 (6) | |
C27 | 0.4599 (3) | 0.23406 (13) | 0.51291 (13) | 0.0251 (7) | |
H27A | 0.4778 | 0.23 | 0.5603 | 0.03* | |
C28 | 0.4495 (3) | 0.30037 (14) | 0.48817 (13) | 0.0247 (6) | |
C29 | 0.4927 (3) | 0.35557 (15) | 0.54001 (13) | 0.0349 (8) | |
H29A | 0.5307 | 0.3935 | 0.5203 | 0.052* | |
H29B | 0.562 | 0.338 | 0.5786 | 0.052* | |
H29C | 0.4133 | 0.371 | 0.5548 | 0.052* | |
C30 | 0.2147 (3) | 0.10323 (17) | 0.17719 (16) | 0.0470 (9) | |
H30A | 0.2012 | 0.0661 | 0.2062 | 0.07* | |
H30B | 0.3068 | 0.1217 | 0.1941 | 0.07* | |
H30C | 0.2035 | 0.0864 | 0.1314 | 0.07* | |
C31 | −0.0196 (3) | 0.13365 (17) | 0.14901 (16) | 0.0451 (9) | |
H31A | −0.0364 | 0.0899 | 0.1686 | 0.054* | |
H31B | −0.037 | 0.1282 | 0.0998 | 0.054* | |
C32 | −0.1108 (3) | 0.18644 (18) | 0.16482 (16) | 0.0434 (9) | |
H32A | −0.207 | 0.1764 | 0.1414 | 0.052* | |
H32B | −0.1024 | 0.1875 | 0.2137 | 0.052* | |
C33 | −0.1580 (3) | 0.3032 (2) | 0.15367 (19) | 0.0601 (11) | |
H33A | −0.2521 | 0.294 | 0.1283 | 0.09* | |
H33B | −0.1273 | 0.3458 | 0.1384 | 0.09* | |
H33C | −0.1538 | 0.3064 | 0.2016 | 0.09* | |
C34 | 0.1146 (4) | 0.22442 (18) | 0.02709 (14) | 0.0482 (9) | |
H34A | 0.1458 | 0.2371 | −0.0124 | 0.072* | |
H34B | 0.0147 | 0.2265 | 0.0161 | 0.072* | |
H34C | 0.1447 | 0.1784 | 0.0407 | 0.072* | |
C35 | 0.1480 (3) | 0.33721 (17) | 0.05910 (13) | 0.0404 (8) | |
H35A | 0.0491 | 0.3461 | 0.0418 | 0.049* | |
H35B | 0.193 | 0.3465 | 0.0228 | 0.049* | |
C36 | 0.2071 (3) | 0.38119 (16) | 0.11862 (14) | 0.0392 (8) | |
H36A | 0.3063 | 0.3729 | 0.1354 | 0.047* | |
H36B | 0.193 | 0.4294 | 0.1061 | 0.047* | |
C37 | 0.1880 (3) | 0.40560 (16) | 0.22734 (13) | 0.0398 (8) | |
H37A | 0.1656 | 0.453 | 0.2162 | 0.06* | |
H37B | 0.2871 | 0.4006 | 0.2439 | 0.06* | |
H37C | 0.1443 | 0.391 | 0.2622 | 0.06* | |
Li1 | 0.1402 (4) | 0.2579 (2) | 0.1758 (2) | 0.0293 (11) |
U11 | U22 | U33 | U12 | U13 | U23 | |
Fe1 | 0.0233 (2) | 0.0180 (2) | 0.01979 (19) | 0.00204 (18) | 0.00035 (15) | −0.00038 (17) |
Cl1 | 0.0236 (3) | 0.0342 (5) | 0.0597 (5) | 0.0032 (3) | −0.0029 (3) | −0.0087 (4) |
Cl2 | 0.0277 (3) | 0.0388 (4) | 0.0222 (3) | 0.0011 (3) | 0.0036 (3) | 0.0002 (3) |
O1 | 0.0339 (12) | 0.0252 (12) | 0.0404 (11) | −0.0029 (9) | 0.0037 (9) | −0.0042 (9) |
O2 | 0.0246 (10) | 0.0364 (13) | 0.0423 (11) | −0.0010 (10) | 0.0063 (9) | 0.0057 (10) |
O3 | 0.0381 (12) | 0.0342 (13) | 0.0264 (10) | −0.0035 (9) | 0.0066 (9) | −0.0030 (9) |
O4 | 0.0361 (12) | 0.0285 (12) | 0.0263 (10) | −0.0036 (9) | 0.0068 (9) | 0.0003 (9) |
N1 | 0.0207 (12) | 0.0199 (13) | 0.0226 (11) | 0.0009 (10) | 0.0061 (10) | 0.0016 (10) |
N2 | 0.0215 (12) | 0.0190 (13) | 0.0223 (12) | 0.0006 (10) | 0.0030 (10) | 0.0005 (9) |
C1 | 0.0267 (15) | 0.0162 (15) | 0.0198 (13) | 0.0059 (12) | 0.0057 (12) | 0.0044 (11) |
C2 | 0.0264 (15) | 0.0233 (17) | 0.0298 (15) | 0.0071 (12) | 0.0093 (13) | 0.0056 (12) |
C3 | 0.0350 (17) | 0.0284 (18) | 0.0384 (16) | 0.0116 (14) | 0.0203 (14) | 0.0045 (14) |
C4 | 0.0454 (18) | 0.0209 (17) | 0.0331 (16) | 0.0073 (14) | 0.0146 (14) | −0.0019 (13) |
C5 | 0.0370 (17) | 0.0200 (16) | 0.0290 (15) | 0.0003 (13) | 0.0087 (14) | 0.0015 (12) |
C6 | 0.0284 (15) | 0.0197 (16) | 0.0249 (14) | 0.0046 (12) | 0.0086 (12) | 0.0048 (11) |
C7 | 0.0265 (16) | 0.0265 (18) | 0.0480 (18) | 0.0058 (13) | 0.0175 (14) | 0.0002 (14) |
C8 | 0.0365 (19) | 0.063 (3) | 0.0453 (19) | −0.0069 (17) | 0.0127 (16) | −0.0029 (17) |
C9 | 0.0356 (18) | 0.035 (2) | 0.0545 (19) | 0.0038 (15) | 0.0204 (16) | 0.0110 (16) |
C10 | 0.0305 (16) | 0.0188 (16) | 0.0383 (16) | −0.0012 (12) | 0.0143 (14) | −0.0015 (12) |
C11 | 0.0309 (17) | 0.039 (2) | 0.0504 (19) | 0.0037 (15) | 0.0106 (15) | −0.0020 (16) |
C12 | 0.0468 (19) | 0.035 (2) | 0.053 (2) | −0.0013 (16) | 0.0291 (17) | 0.0045 (15) |
C13 | 0.0240 (15) | 0.0196 (16) | 0.0180 (13) | −0.0034 (12) | −0.0021 (12) | −0.0032 (11) |
C14 | 0.0265 (15) | 0.0195 (16) | 0.0235 (14) | −0.0029 (12) | 0.0018 (12) | −0.0040 (11) |
C15 | 0.0297 (16) | 0.0188 (16) | 0.0286 (15) | 0.0026 (12) | 0.0000 (13) | −0.0024 (12) |
C16 | 0.0375 (17) | 0.0163 (16) | 0.0309 (15) | −0.0054 (13) | 0.0060 (14) | −0.0021 (12) |
C17 | 0.0300 (16) | 0.0264 (18) | 0.0337 (16) | −0.0085 (13) | 0.0079 (13) | −0.0045 (13) |
C18 | 0.0233 (15) | 0.0218 (16) | 0.0275 (14) | −0.0034 (12) | −0.0017 (12) | −0.0044 (12) |
C19 | 0.0394 (17) | 0.0197 (17) | 0.0371 (16) | 0.0074 (13) | 0.0161 (14) | 0.0057 (13) |
C20 | 0.057 (2) | 0.038 (2) | 0.0402 (18) | 0.0106 (17) | 0.0197 (16) | 0.0022 (15) |
C21 | 0.0349 (18) | 0.030 (2) | 0.060 (2) | 0.0003 (15) | 0.0194 (16) | −0.0050 (16) |
C22 | 0.0225 (15) | 0.0242 (17) | 0.0440 (17) | 0.0002 (13) | 0.0036 (14) | −0.0008 (14) |
C23 | 0.0268 (17) | 0.060 (3) | 0.055 (2) | 0.0082 (16) | −0.0013 (16) | 0.0030 (18) |
C24 | 0.0328 (18) | 0.037 (2) | 0.0567 (19) | 0.0038 (15) | 0.0182 (16) | −0.0017 (16) |
C25 | 0.0375 (17) | 0.0300 (18) | 0.0276 (15) | 0.0082 (14) | 0.0073 (13) | 0.0085 (13) |
C26 | 0.0216 (15) | 0.0248 (16) | 0.0229 (14) | 0.0037 (12) | 0.0059 (12) | 0.0050 (12) |
C27 | 0.0302 (15) | 0.0270 (18) | 0.0173 (13) | 0.0053 (12) | 0.0048 (11) | 0.0022 (11) |
C28 | 0.0202 (15) | 0.0265 (17) | 0.0251 (14) | 0.0036 (12) | 0.0014 (12) | −0.0028 (12) |
C29 | 0.0442 (19) | 0.0298 (19) | 0.0243 (15) | 0.0045 (14) | −0.0026 (14) | −0.0046 (13) |
C30 | 0.061 (2) | 0.033 (2) | 0.0482 (19) | 0.0127 (17) | 0.0172 (17) | −0.0055 (16) |
C31 | 0.045 (2) | 0.037 (2) | 0.0465 (19) | −0.0140 (16) | −0.0005 (16) | −0.0045 (16) |
C32 | 0.0274 (17) | 0.049 (2) | 0.0492 (19) | −0.0150 (16) | 0.0012 (15) | 0.0062 (17) |
C33 | 0.037 (2) | 0.057 (3) | 0.087 (3) | 0.0160 (19) | 0.016 (2) | 0.009 (2) |
C34 | 0.062 (2) | 0.049 (2) | 0.0341 (18) | −0.0061 (18) | 0.0130 (17) | −0.0162 (16) |
C35 | 0.050 (2) | 0.043 (2) | 0.0288 (16) | −0.0042 (16) | 0.0110 (15) | 0.0047 (15) |
C36 | 0.052 (2) | 0.033 (2) | 0.0356 (17) | −0.0105 (16) | 0.0160 (15) | 0.0028 (14) |
C37 | 0.058 (2) | 0.0288 (19) | 0.0306 (16) | −0.0031 (16) | 0.0079 (15) | −0.0096 (14) |
Li1 | 0.027 (2) | 0.023 (3) | 0.035 (2) | −0.004 (2) | 0.004 (2) | −0.004 (2) |
Fe1—N1 | 2.020 (2) | C16—C17 | 1.373 (4) |
Fe1—N2 | 2.029 (2) | C16—H16A | 0.95 |
Fe1—Cl1 | 2.2982 (8) | C17—C18 | 1.396 (4) |
Fe1—Cl2 | 2.3207 (7) | C17—H17A | 0.95 |
Cl2—Li1 | 2.463 (4) | C18—C22 | 1.516 (4) |
O1—C31 | 1.418 (3) | C19—C21 | 1.533 (4) |
O1—C30 | 1.424 (4) | C19—C20 | 1.534 (4) |
O1—Li1 | 2.058 (5) | C19—H19A | 1 |
O2—C32 | 1.422 (4) | C20—H20A | 0.98 |
O2—C33 | 1.424 (4) | C20—H20B | 0.98 |
O2—Li1 | 2.088 (5) | C20—H20C | 0.98 |
O3—C35 | 1.409 (4) | C21—H21A | 0.98 |
O3—C34 | 1.419 (3) | C21—H21B | 0.98 |
O3—Li1 | 2.081 (5) | C21—H21C | 0.98 |
O4—C36 | 1.415 (3) | C22—C24 | 1.521 (4) |
O4—C37 | 1.432 (3) | C22—C23 | 1.543 (4) |
O4—Li1 | 2.126 (5) | C22—H22A | 1 |
N1—C26 | 1.339 (3) | C23—H23A | 0.98 |
N1—C1 | 1.441 (3) | C23—H23B | 0.98 |
N2—C28 | 1.328 (3) | C23—H23C | 0.98 |
N2—C13 | 1.443 (3) | C24—H24A | 0.98 |
C1—C2 | 1.395 (4) | C24—H24B | 0.98 |
C1—C6 | 1.403 (4) | C24—H24C | 0.98 |
C2—C3 | 1.391 (4) | C25—C26 | 1.510 (4) |
C2—C7 | 1.515 (4) | C25—H25A | 0.98 |
C3—C4 | 1.375 (4) | C25—H25B | 0.98 |
C3—H3A | 0.95 | C25—H25C | 0.98 |
C4—C5 | 1.374 (4) | C26—C27 | 1.398 (4) |
C4—H4A | 0.95 | C27—C28 | 1.404 (4) |
C5—C6 | 1.394 (4) | C27—H27A | 0.95 |
C5—H5A | 0.95 | C28—C29 | 1.513 (4) |
C6—C10 | 1.515 (4) | C29—H29A | 0.98 |
C7—C9 | 1.526 (4) | C29—H29B | 0.98 |
C7—C8 | 1.546 (4) | C29—H29C | 0.98 |
C7—H7A | 1 | C30—H30A | 0.98 |
C8—H8A | 0.98 | C30—H30B | 0.98 |
C8—H8B | 0.98 | C30—H30C | 0.98 |
C8—H8C | 0.98 | C31—C32 | 1.488 (5) |
C9—H9A | 0.98 | C31—H31A | 0.99 |
C9—H9B | 0.98 | C31—H31B | 0.99 |
C9—H9C | 0.98 | C32—H32A | 0.99 |
C10—C11 | 1.528 (4) | C32—H32B | 0.99 |
C10—C12 | 1.539 (4) | C33—H33A | 0.98 |
C10—H10A | 1 | C33—H33B | 0.98 |
C11—H11A | 0.98 | C33—H33C | 0.98 |
C11—H11B | 0.98 | C34—H34A | 0.98 |
C11—H11C | 0.98 | C34—H34B | 0.98 |
C12—H12A | 0.98 | C34—H34C | 0.98 |
C12—H12B | 0.98 | C35—C36 | 1.499 (4) |
C12—H12C | 0.98 | C35—H35A | 0.99 |
C13—C18 | 1.407 (4) | C35—H35B | 0.99 |
C13—C14 | 1.410 (4) | C36—H36A | 0.99 |
C14—C15 | 1.395 (4) | C36—H36B | 0.99 |
C14—C19 | 1.524 (4) | C37—H37A | 0.98 |
C15—C16 | 1.377 (4) | C37—H37B | 0.98 |
C15—H15A | 0.95 | C37—H37C | 0.98 |
N1—Fe1—N2 | 92.46 (9) | C19—C20—H20C | 109.5 |
N1—Fe1—Cl1 | 117.92 (6) | H20A—C20—H20C | 109.5 |
N2—Fe1—Cl1 | 111.77 (6) | H20B—C20—H20C | 109.5 |
N1—Fe1—Cl2 | 114.82 (6) | C19—C21—H21A | 109.5 |
N2—Fe1—Cl2 | 116.86 (6) | C19—C21—H21B | 109.5 |
Cl1—Fe1—Cl2 | 103.56 (3) | H21A—C21—H21B | 109.5 |
Fe1—Cl2—Li1 | 98.54 (11) | C19—C21—H21C | 109.5 |
C31—O1—C30 | 113.3 (2) | H21A—C21—H21C | 109.5 |
C31—O1—Li1 | 113.1 (2) | H21B—C21—H21C | 109.5 |
C30—O1—Li1 | 129.1 (2) | C18—C22—C24 | 114.3 (2) |
C32—O2—C33 | 112.1 (3) | C18—C22—C23 | 111.6 (2) |
C32—O2—Li1 | 108.3 (2) | C24—C22—C23 | 109.3 (2) |
C33—O2—Li1 | 121.0 (2) | C18—C22—H22A | 107.1 |
C35—O3—C34 | 111.0 (2) | C24—C22—H22A | 107.1 |
C35—O3—Li1 | 110.6 (2) | C23—C22—H22A | 107.1 |
C34—O3—Li1 | 122.5 (2) | C22—C23—H23A | 109.5 |
C36—O4—C37 | 111.4 (2) | C22—C23—H23B | 109.5 |
C36—O4—Li1 | 106.6 (2) | H23A—C23—H23B | 109.5 |
C37—O4—Li1 | 120.6 (2) | C22—C23—H23C | 109.5 |
C26—N1—C1 | 118.2 (2) | H23A—C23—H23C | 109.5 |
C26—N1—Fe1 | 122.84 (18) | H23B—C23—H23C | 109.5 |
C1—N1—Fe1 | 118.91 (15) | C22—C24—H24A | 109.5 |
C28—N2—C13 | 120.6 (2) | C22—C24—H24B | 109.5 |
C28—N2—Fe1 | 123.12 (19) | H24A—C24—H24B | 109.5 |
C13—N2—Fe1 | 116.26 (15) | C22—C24—H24C | 109.5 |
C2—C1—C6 | 121.0 (2) | H24A—C24—H24C | 109.5 |
C2—C1—N1 | 118.4 (2) | H24B—C24—H24C | 109.5 |
C6—C1—N1 | 120.6 (2) | C26—C25—H25A | 109.5 |
C3—C2—C1 | 118.1 (3) | C26—C25—H25B | 109.5 |
C3—C2—C7 | 119.4 (3) | H25A—C25—H25B | 109.5 |
C1—C2—C7 | 122.4 (3) | C26—C25—H25C | 109.5 |
C4—C3—C2 | 121.8 (3) | H25A—C25—H25C | 109.5 |
C4—C3—H3A | 119.1 | H25B—C25—H25C | 109.5 |
C2—C3—H3A | 119.1 | N1—C26—C27 | 123.7 (2) |
C5—C4—C3 | 119.5 (3) | N1—C26—C25 | 119.9 (2) |
C5—C4—H4A | 120.3 | C27—C26—C25 | 116.3 (2) |
C3—C4—H4A | 120.3 | C26—C27—C28 | 129.0 (2) |
C4—C5—C6 | 121.3 (3) | C26—C27—H27A | 115.5 |
C4—C5—H5A | 119.4 | C28—C27—H27A | 115.5 |
C6—C5—H5A | 119.4 | N2—C28—C27 | 123.6 (2) |
C5—C6—C1 | 118.3 (2) | N2—C28—C29 | 120.4 (2) |
C5—C6—C10 | 118.8 (3) | C27—C28—C29 | 116.0 (2) |
C1—C6—C10 | 122.9 (2) | C28—C29—H29A | 109.5 |
C2—C7—C9 | 112.8 (2) | C28—C29—H29B | 109.5 |
C2—C7—C8 | 111.7 (2) | H29A—C29—H29B | 109.5 |
C9—C7—C8 | 110.1 (2) | C28—C29—H29C | 109.5 |
C2—C7—H7A | 107.3 | H29A—C29—H29C | 109.5 |
C9—C7—H7A | 107.3 | H29B—C29—H29C | 109.5 |
C8—C7—H7A | 107.3 | O1—C30—H30A | 109.5 |
C7—C8—H8A | 109.5 | O1—C30—H30B | 109.5 |
C7—C8—H8B | 109.5 | H30A—C30—H30B | 109.5 |
H8A—C8—H8B | 109.5 | O1—C30—H30C | 109.5 |
C7—C8—H8C | 109.5 | H30A—C30—H30C | 109.5 |
H8A—C8—H8C | 109.5 | H30B—C30—H30C | 109.5 |
H8B—C8—H8C | 109.5 | O1—C31—C32 | 107.5 (2) |
C7—C9—H9A | 109.5 | O1—C31—H31A | 110.2 |
C7—C9—H9B | 109.5 | C32—C31—H31A | 110.2 |
H9A—C9—H9B | 109.5 | O1—C31—H31B | 110.2 |
C7—C9—H9C | 109.5 | C32—C31—H31B | 110.2 |
H9A—C9—H9C | 109.5 | H31A—C31—H31B | 108.5 |
H9B—C9—H9C | 109.5 | O2—C32—C31 | 108.2 (3) |
C6—C10—C11 | 110.4 (2) | O2—C32—H32A | 110.1 |
C6—C10—C12 | 112.7 (2) | C31—C32—H32A | 110.1 |
C11—C10—C12 | 110.2 (2) | O2—C32—H32B | 110.1 |
C6—C10—H10A | 107.8 | C31—C32—H32B | 110.1 |
C11—C10—H10A | 107.8 | H32A—C32—H32B | 108.4 |
C12—C10—H10A | 107.8 | O2—C33—H33A | 109.5 |
C10—C11—H11A | 109.5 | O2—C33—H33B | 109.5 |
C10—C11—H11B | 109.5 | H33A—C33—H33B | 109.5 |
H11A—C11—H11B | 109.5 | O2—C33—H33C | 109.5 |
C10—C11—H11C | 109.5 | H33A—C33—H33C | 109.5 |
H11A—C11—H11C | 109.5 | H33B—C33—H33C | 109.5 |
H11B—C11—H11C | 109.5 | O3—C34—H34A | 109.5 |
C10—C12—H12A | 109.5 | O3—C34—H34B | 109.5 |
C10—C12—H12B | 109.5 | H34A—C34—H34B | 109.5 |
H12A—C12—H12B | 109.5 | O3—C34—H34C | 109.5 |
C10—C12—H12C | 109.5 | H34A—C34—H34C | 109.5 |
H12A—C12—H12C | 109.5 | H34B—C34—H34C | 109.5 |
H12B—C12—H12C | 109.5 | O3—C35—C36 | 107.4 (2) |
C18—C13—C14 | 121.1 (3) | O3—C35—H35A | 110.2 |
C18—C13—N2 | 117.4 (2) | C36—C35—H35A | 110.2 |
C14—C13—N2 | 121.3 (2) | O3—C35—H35B | 110.2 |
C15—C14—C13 | 117.9 (3) | C36—C35—H35B | 110.2 |
C15—C14—C19 | 118.9 (3) | H35A—C35—H35B | 108.5 |
C13—C14—C19 | 123.2 (2) | O4—C36—C35 | 107.4 (2) |
C16—C15—C14 | 121.6 (3) | O4—C36—H36A | 110.2 |
C16—C15—H15A | 119.2 | C35—C36—H36A | 110.2 |
C14—C15—H15A | 119.2 | O4—C36—H36B | 110.2 |
C17—C16—C15 | 119.8 (3) | C35—C36—H36B | 110.2 |
C17—C16—H16A | 120.1 | H36A—C36—H36B | 108.5 |
C15—C16—H16A | 120.1 | O4—C37—H37A | 109.5 |
C16—C17—C18 | 121.7 (3) | O4—C37—H37B | 109.5 |
C16—C17—H17A | 119.2 | H37A—C37—H37B | 109.5 |
C18—C17—H17A | 119.2 | O4—C37—H37C | 109.5 |
C17—C18—C13 | 117.9 (3) | H37A—C37—H37C | 109.5 |
C17—C18—C22 | 120.8 (3) | H37B—C37—H37C | 109.5 |
C13—C18—C22 | 121.3 (3) | O1—Li1—O3 | 99.6 (2) |
C14—C19—C21 | 112.6 (2) | O1—Li1—O2 | 79.33 (18) |
C14—C19—C20 | 110.8 (2) | O3—Li1—O2 | 95.40 (19) |
C21—C19—C20 | 109.0 (2) | O1—Li1—O4 | 173.3 (3) |
C14—C19—H19A | 108.1 | O3—Li1—O4 | 79.66 (18) |
C21—C19—H19A | 108.1 | O2—Li1—O4 | 94.1 (2) |
C20—C19—H19A | 108.1 | O1—Li1—Cl2 | 93.41 (18) |
C19—C20—H20A | 109.5 | O3—Li1—Cl2 | 104.02 (19) |
C19—C20—H20B | 109.5 | O2—Li1—Cl2 | 160.2 (2) |
H20A—C20—H20B | 109.5 | O4—Li1—Cl2 | 93.21 (17) |
N1—Fe1—Cl2—Li1 | 125.89 (13) | C15—C14—C19—C20 | −57.1 (3) |
N2—Fe1—Cl2—Li1 | −127.41 (13) | C13—C14—C19—C20 | 120.9 (3) |
Cl1—Fe1—Cl2—Li1 | −4.06 (12) | C17—C18—C22—C24 | −31.1 (4) |
N2—Fe1—N1—C26 | 21.2 (2) | C13—C18—C22—C24 | 150.4 (3) |
Cl1—Fe1—N1—C26 | −95.1 (2) | C17—C18—C22—C23 | 93.5 (3) |
Cl2—Fe1—N1—C26 | 142.44 (18) | C13—C18—C22—C23 | −85.0 (3) |
N2—Fe1—N1—C1 | −159.79 (19) | C1—N1—C26—C27 | 170.7 (2) |
Cl1—Fe1—N1—C1 | 83.93 (19) | Fe1—N1—C26—C27 | −10.3 (4) |
Cl2—Fe1—N1—C1 | −38.6 (2) | C1—N1—C26—C25 | −8.0 (4) |
N1—Fe1—N2—C28 | −21.1 (2) | Fe1—N1—C26—C25 | 171.04 (19) |
Cl1—Fe1—N2—C28 | 100.3 (2) | N1—C26—C27—C28 | −10.4 (5) |
Cl2—Fe1—N2—C28 | −140.67 (18) | C25—C26—C27—C28 | 168.3 (3) |
N1—Fe1—N2—C13 | 157.42 (18) | C13—N2—C28—C27 | −168.6 (3) |
Cl1—Fe1—N2—C13 | −81.13 (18) | Fe1—N2—C28—C27 | 9.9 (4) |
Cl2—Fe1—N2—C13 | 37.9 (2) | C13—N2—C28—C29 | 11.5 (4) |
C26—N1—C1—C2 | −92.5 (3) | Fe1—N2—C28—C29 | −170.0 (2) |
Fe1—N1—C1—C2 | 88.5 (2) | C26—C27—C28—N2 | 10.6 (5) |
C26—N1—C1—C6 | 89.4 (3) | C26—C27—C28—C29 | −169.5 (3) |
Fe1—N1—C1—C6 | −89.7 (2) | C30—O1—C31—C32 | 168.3 (2) |
C6—C1—C2—C3 | −3.9 (4) | Li1—O1—C31—C32 | −33.3 (3) |
N1—C1—C2—C3 | 178.0 (2) | C33—O2—C32—C31 | 177.4 (2) |
C6—C1—C2—C7 | 177.8 (2) | Li1—O2—C32—C31 | −46.5 (3) |
N1—C1—C2—C7 | −0.3 (4) | O1—C31—C32—O2 | 52.7 (3) |
C1—C2—C3—C4 | 1.4 (4) | C34—O3—C35—C36 | 178.8 (2) |
C7—C2—C3—C4 | 179.8 (2) | Li1—O3—C35—C36 | 39.5 (3) |
C2—C3—C4—C5 | 1.0 (4) | C37—O4—C36—C35 | −178.9 (2) |
C3—C4—C5—C6 | −1.1 (4) | Li1—O4—C36—C35 | 47.7 (3) |
C4—C5—C6—C1 | −1.3 (4) | O3—C35—C36—O4 | −59.3 (3) |
C4—C5—C6—C10 | 178.6 (2) | C31—O1—Li1—O3 | −86.8 (2) |
C2—C1—C6—C5 | 3.8 (4) | C30—O1—Li1—O3 | 67.4 (3) |
N1—C1—C6—C5 | −178.1 (2) | C31—O1—Li1—O2 | 6.9 (2) |
C2—C1—C6—C10 | −176.0 (2) | C30—O1—Li1—O2 | 161.2 (2) |
N1—C1—C6—C10 | 2.0 (4) | C31—O1—Li1—Cl2 | 168.4 (2) |
C3—C2—C7—C9 | 48.4 (3) | C30—O1—Li1—Cl2 | −37.4 (3) |
C1—C2—C7—C9 | −133.3 (3) | C35—O3—Li1—O1 | 162.1 (2) |
C3—C2—C7—C8 | −76.3 (3) | C34—O3—Li1—O1 | 28.3 (3) |
C1—C2—C7—C8 | 102.0 (3) | C35—O3—Li1—O2 | 82.1 (2) |
C5—C6—C10—C11 | −65.9 (3) | C34—O3—Li1—O2 | −51.8 (3) |
C1—C6—C10—C11 | 114.0 (3) | C35—O3—Li1—O4 | −11.1 (2) |
C5—C6—C10—C12 | 57.9 (3) | C34—O3—Li1—O4 | −145.0 (2) |
C1—C6—C10—C12 | −122.3 (3) | C35—O3—Li1—Cl2 | −101.9 (2) |
C28—N2—C13—C18 | 98.2 (3) | C34—O3—Li1—Cl2 | 124.3 (2) |
Fe1—N2—C13—C18 | −80.4 (2) | C32—O2—Li1—O1 | 22.2 (2) |
C28—N2—C13—C14 | −85.7 (3) | C33—O2—Li1—O1 | 153.6 (2) |
Fe1—N2—C13—C14 | 95.7 (2) | C32—O2—Li1—O3 | 121.0 (2) |
C18—C13—C14—C15 | 0.8 (4) | C33—O2—Li1—O3 | −107.5 (3) |
N2—C13—C14—C15 | −175.2 (2) | C32—O2—Li1—O4 | −159.0 (2) |
C18—C13—C14—C19 | −177.3 (2) | C33—O2—Li1—O4 | −27.6 (3) |
N2—C13—C14—C19 | 6.8 (4) | C32—O2—Li1—Cl2 | −47.7 (8) |
C13—C14—C15—C16 | −0.8 (4) | C33—O2—Li1—Cl2 | 83.8 (8) |
C19—C14—C15—C16 | 177.3 (2) | C36—O4—Li1—O3 | −20.9 (2) |
C14—C15—C16—C17 | 0.1 (4) | C37—O4—Li1—O3 | −149.1 (2) |
C15—C16—C17—C18 | 0.8 (4) | C36—O4—Li1—O2 | −115.6 (2) |
C16—C17—C18—C13 | −0.9 (4) | C37—O4—Li1—O2 | 116.2 (2) |
C16—C17—C18—C22 | −179.4 (2) | C36—O4—Li1—Cl2 | 82.8 (2) |
C14—C13—C18—C17 | 0.1 (4) | C37—O4—Li1—Cl2 | −45.4 (3) |
N2—C13—C18—C17 | 176.1 (2) | Fe1—Cl2—Li1—O1 | −82.12 (15) |
C14—C13—C18—C22 | 178.6 (2) | Fe1—Cl2—Li1—O3 | 177.06 (16) |
N2—C13—C18—C22 | −5.3 (3) | Fe1—Cl2—Li1—O2 | −14.6 (7) |
C15—C14—C19—C21 | 65.2 (3) | Fe1—Cl2—Li1—O4 | 96.92 (14) |
C13—C14—C19—C21 | −116.8 (3) |
Experimental details
Crystal data | |
Chemical formula | [FeLi(C29H41N2)Cl2(C4H10O2)2] |
Mr | 731.57 |
Crystal system, space group | Monoclinic, P21/c |
Temperature (K) | 150 |
a, b, c (Å) | 10.1467 (5), 19.8186 (10), 20.6289 (11) |
β (°) | 104.962 (4) |
V (Å3) | 4007.7 (4) |
Z | 4 |
Radiation type | Mo Kα |
µ (mm−1) | 0.55 |
Crystal size (mm) | 0.27 × 0.24 × 0.13 |
Data collection | |
Diffractometer | Oxford Diffraction Xcalibur Sapphire2 (large Be window) |
Absorption correction | Multi-scan (CrysAlis PRO; Oxford Diffraction, 2009) |
Tmin, Tmax | 0.983, 1 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 23717, 7045, 4320 |
Rint | 0.042 |
(sin θ/λ)max (Å−1) | 0.595 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.041, 0.108, 0.89 |
No. of reflections | 7045 |
No. of parameters | 438 |
H-atom treatment | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 1.63, −0.29 |
Computer programs: X-AREA (Stoe & Cie, 1997), X-RED (Stoe & Cie, 1997), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), ORTEP-3 (Farrugia, 1997), WinGX32 (Farrugia, 1999).
Fe1—N1 | 2.020 (2) | O1—Li1 | 2.058 (5) |
Fe1—N2 | 2.029 (2) | O2—Li1 | 2.088 (5) |
Fe1—Cl1 | 2.2982 (8) | O3—Li1 | 2.081 (5) |
Fe1—Cl2 | 2.3207 (7) | O4—Li1 | 2.126 (5) |
Acknowledgements
We thank the Polish State Committee of Scientific Research (project No. NN204271535) for financial support.
References
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In the course of our studies on phosphorus-iron chemistry, we have syntesised the title complex of iron(II) [LFeCl{µ-Cl}Li(DME)2] (L = [{(2,6-iPr2H3C6)NC(CH3)}2CH]-) (1). This compound turned to be the main product in reaction tBu2P—P(SiMe3)Li.2THF with [LFeCl2] (L = {(2,6-iPr2H3C6)N(CH3)C}2CH]- (molar ratio 2:1 in DME). We observed reduction of starting complex of iron(III) to iron(II) by lithium salt of diphosphane. Simultaneously polyphosphorous compounds were formed. Similar reactions were observed for TiIV compoudns (Baum et al. 2004). [Cp2TiCl2](Cp = C5H5) reacts with tBu2P—P(Li)—PtBu2 or with tBu2P—P(SiMe3)Li, respectively yielding Ti(III) complex [Cp2Ti{µ-Cl)2Li(THF)2].
(I) crystallizes with one molecule in the asymmetric unit (Fig 1). The iron centre is tetrahedrally coordinated by a chelating amidinate ligand and two chloride atoms. One of them bridges to a lithium ion, which is solvated by two DME molecules. In contrast to the related complexes of iron(II) that includes 2,4-bis(2,6-diisopropylphenylimido) pentane ligand, with both chloride atoms bridging FeII and Li centres, the presented complex displays one bridging and one terminal chloride atom. The Cl—Fe—Cl angle value in this compound is about 7° wider than analogous one in the iron (II) complexes with 2,4-bis(2,6-diisopropylphenylimido) pentane ligands, and two bridging chloride atoms (Smith et al.2001). In comparison with complex [{PhC(N-2,6-iPr2C6H3)2}FeCl(µ-Cl)Li(THF)3] the Cl—N—Cl angle is about 15° smaller (Sciarone et al. 2006). The N(1)—Fe(1)—N(2) bond angle is 92.46 (9)°, while the N(1)—Fe(1)—Cl(1), N(1)—Fe(1)—Cl(2), N(2)—Fe(1)—Cl(1), N(2)—Fe(1)—Cl(2) bond angles are - 117.92 (6)°, 114.82 (6)°, 111.77 (6)°, 116.86 (6)°, respectively. The Fe—N and Fe—Cl bond lengths do not differ significantly from typical values (Evans et al. 2003).