Literature DB >> 21588890

Tris(N,N'-diisopropyl-benzamidinato)cerium(III).

Peter Dröse1, Cristian G Hrib, Steffen Blaurock, Frank T Edelmann.   

Abstract

The title compound, [Ce(C(13)H(19)N(2))(3)], was obtained in moderate yield (67%) by treatment of anhydrous n class="Chemical">cerium trichloride with three equivalents of Li[PhC(N(i)Pr)(2)] in tetra-hydro-furan. It is the first homoleptic lanthanide complex of this amidinate ligand. The central Ce(III) ion is coordinated by three chelating benzamidinate anions in a distorted octa-hedral fashion, with Ce-N distances in the narrow range 2.482 (2)-2.492 (2) Å. The dihedral angles between the phenyl rings and the chelating N-C-N units are in the range 73.3-87.9°, thus preventing conjugation between the two π-systems. The mol-ecule is located on a twofold rotation axis, and one of the phenyl rings is equally disordered over two alternative symmetry-equivalent positions around this axis.

Entities:  

Year:  2010        PMID: 21588890      PMCID: PMC3009107          DOI: 10.1107/S1600536810042704

Source DB:  PubMed          Journal:  Acta Crystallogr Sect E Struct Rep Online        ISSN: 1600-5368


Related literature

For general background to lanthanide coordination complexes, see: Bailey & Pace (2001 ▶); Edelmann et al. (2002 ▶); Edelmann (2009 ▶). Wedler et al. (1992 ▶) describe complexes related to the title compound. For applications of homoleptic n class="Chemical">metal amid­inato complexes, see: Lim et al. (2003 ▶); Päiväsaari et al. (2005 ▶).

Experimental

Crystal data

[Ce(C13H19N2)3] M = 750.03 Monoclinic, a = 14.1225 (4) Å b = 18.5957 (6) Å c = 15.6544 (4) Å β = 98.324 (2)° V = 4067.8 (2) Å3 Z = 4 Mo Kα radiation μ = 1.15 mm−1 T = 133 K 0.30 × 0.20 × 0.10 mm

Data collection

Stoe IPDS 2T diffractometer 32963 measured reflections 5485 independent reflections 5147 reflections with I > 2σ(I) R int = 0.048

Refinement

R[F 2 > 2σ(F 2)] = 0.026 wR(F 2) = 0.061 S = 1.11 5485 reflections 230 parameters H-atom parameters constrained Δρmax = 0.64 e Å−3 Δρmin = −1.00 e Å−3 Data collection: X-AREA (Stoe & Cie, 2002 ▶); cell refinement: X-AREA; data reduction: X-RED (Stoe & Cie, 2002 ▶); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008 ▶); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008 ▶); molecular graphics: XP (Siemens, 1994 ▶); software used to prepare material for publication: SHELXL97. Crystal structure: contains datablocks I, global. DOI: 10.1107/S1600536810042704/zl2316sup1.cif Structure factors: contains datablocks I. DOI: 10.1107/S1600536810042704/zl2316Isup2.hkl Additional supplementary materials: crystallographic information; 3D view; checkCIF report
[Ce(C13H19N2)3]F(000) = 1564
Mr = 750.03Dx = 1.225 Mg m3
Monoclinic, C2/cMo Kα radiation, λ = 0.71073 Å
a = 14.1225 (4) ÅCell parameters from 58857 reflections
b = 18.5957 (6) Åθ = 2.1–29.6°
c = 15.6544 (4) ŵ = 1.15 mm1
β = 98.324 (2)°T = 133 K
V = 4067.8 (2) Å3Prism, yellow
Z = 40.30 × 0.20 × 0.10 mm
Stoe IPDS 2T diffractometer5147 reflections with I > 2σ(I)
Radiation source: fine-focus sealed tubeRint = 0.048
plane graphiteθmax = 29.2°, θmin = 2.1°
Detector resolution: 6.67 pixels mm-1h = −19→19
rotation method scansk = −25→25
32963 measured reflectionsl = −21→20
5485 independent reflections
Refinement on F2Primary atom site location: structure-invariant direct methods
Least-squares matrix: fullSecondary atom site location: difference Fourier map
R[F2 > 2σ(F2)] = 0.026Hydrogen site location: inferred from neighbouring sites
wR(F2) = 0.061H-atom parameters constrained
S = 1.11w = 1/[σ2(Fo2) + (0.031P)2 + 1.6552P] where P = (Fo2 + 2Fc2)/3
5485 reflections(Δ/σ)max = 0.002
230 parametersΔρmax = 0.64 e Å3
0 restraintsΔρmin = −1.00 e Å3
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. The phenyl ring with two carbon atoms located on the C2 rotation axis lies in two alternative symmetry related positions.
xyzUiso*/UeqOcc. (<1)
Ce0.50000.699350 (7)0.75000.03398 (5)
N10.56280 (13)0.78730 (10)0.86347 (14)0.0595 (5)
N20.41661 (11)0.74104 (9)0.87036 (11)0.0465 (4)
N30.57059 (11)0.57999 (8)0.79492 (11)0.0471 (4)
C10.48506 (13)0.78591 (10)0.90212 (13)0.0444 (4)
C20.47606 (12)0.83394 (10)0.97814 (12)0.0413 (4)
C30.52818 (15)0.82015 (13)1.05786 (14)0.0526 (4)
H30.57000.77991.06480.063*
C40.52048 (16)0.86400 (15)1.12785 (15)0.0599 (5)
H40.55660.85361.18250.072*
C50.46115 (17)0.92218 (13)1.11859 (15)0.0592 (5)
H50.45540.95211.16670.071*
C60.40972 (18)0.93729 (12)1.03927 (16)0.0606 (5)
H60.36920.97831.03250.073*
C70.41652 (16)0.89307 (11)0.96895 (14)0.0521 (4)
H70.38010.90360.91450.062*
C80.33639 (13)0.72355 (12)0.91592 (13)0.0475 (4)
H80.33500.75860.96410.057*
C90.3499 (2)0.64907 (17)0.9530 (2)0.0829 (9)
H9A0.35750.61490.90680.124*
H9B0.29380.63570.97980.124*
H9C0.40710.64800.99660.124*
C100.24360 (16)0.7286 (2)0.85526 (17)0.0734 (7)
H10A0.23450.77800.83380.110*
H10B0.19040.71530.88600.110*
H10C0.24540.69580.80650.110*
C110.63744 (17)0.84142 (15)0.88303 (17)0.0688 (7)
H110.63140.86560.93910.083*
C120.6317 (3)0.89570 (16)0.8125 (3)0.1140 (15)
H12A0.64310.87210.75890.171*
H12B0.68030.93290.82800.171*
H12C0.56800.91780.80400.171*
C130.7336 (2)0.8035 (2)0.8890 (3)0.1099 (14)
H13A0.73610.76410.93090.165*
H13B0.78510.83780.90760.165*
H13C0.74140.78400.83220.165*
C140.50000.54307 (13)0.75000.0408 (5)
C150.5009 (10)0.46299 (10)0.7603 (6)0.0382 (13)0.50
C160.4568 (8)0.4312 (3)0.8245 (4)0.068 (2)0.50
H160.42720.46030.86300.081*0.50
C170.4559 (5)0.3567 (3)0.8326 (3)0.088 (2)0.50
H170.42580.33500.87650.105*0.50
C180.4992 (6)0.31412 (11)0.7763 (4)0.074 (2)0.50
H180.49860.26330.78180.089*0.50
C17A0.5434 (4)0.3460 (2)0.7121 (3)0.0754 (19)0.50
H17A0.57290.31680.67360.090*0.50
C16A0.5442 (7)0.4204 (2)0.7040 (4)0.0574 (15)0.50
H16A0.57440.44210.66010.069*0.50
C190.64510 (15)0.54478 (12)0.85451 (16)0.0561 (5)
H190.64310.49200.84240.067*
C200.74139 (19)0.5732 (2)0.8419 (3)0.0961 (11)
H20A0.75310.56250.78300.144*
H20B0.79090.55020.88330.144*
H20C0.74320.62530.85110.144*
C210.6265 (3)0.5570 (3)0.9468 (2)0.1027 (12)
H21A0.62800.60860.95930.154*
H21B0.67590.53260.98690.154*
H21C0.56350.53760.95360.154*
U11U22U33U12U13U23
Ce0.03793 (7)0.03059 (7)0.03552 (7)0.0000.01243 (5)0.000
N10.0504 (9)0.0655 (11)0.0698 (12)−0.0243 (8)0.0333 (8)−0.0329 (9)
N20.0442 (7)0.0518 (9)0.0486 (8)−0.0133 (7)0.0235 (7)−0.0136 (7)
N30.0468 (8)0.0351 (7)0.0554 (9)0.0003 (6)−0.0058 (7)0.0001 (6)
C10.0440 (8)0.0453 (9)0.0476 (9)−0.0064 (7)0.0195 (7)−0.0107 (7)
C20.0411 (8)0.0422 (9)0.0439 (9)−0.0063 (7)0.0174 (7)−0.0080 (7)
C30.0478 (10)0.0607 (11)0.0509 (11)0.0047 (9)0.0124 (8)−0.0057 (9)
C40.0549 (11)0.0809 (15)0.0447 (10)−0.0078 (11)0.0102 (9)−0.0118 (10)
C50.0656 (12)0.0619 (13)0.0543 (11)−0.0135 (10)0.0229 (10)−0.0223 (10)
C60.0748 (14)0.0459 (10)0.0651 (13)0.0059 (10)0.0232 (11)−0.0104 (10)
C70.0615 (11)0.0483 (10)0.0481 (10)0.0035 (9)0.0138 (8)−0.0037 (8)
C80.0432 (9)0.0557 (10)0.0478 (10)−0.0125 (8)0.0215 (8)−0.0093 (8)
C90.0660 (15)0.0777 (18)0.112 (2)−0.0061 (13)0.0372 (15)0.0276 (17)
C100.0447 (11)0.117 (2)0.0627 (14)−0.0066 (12)0.0206 (10)−0.0024 (15)
C110.0597 (12)0.0783 (16)0.0766 (15)−0.0355 (12)0.0377 (11)−0.0441 (13)
C120.093 (2)0.0517 (15)0.193 (4)−0.0297 (15)0.006 (3)0.003 (2)
C130.0566 (15)0.127 (3)0.139 (4)−0.0321 (17)−0.0075 (19)0.001 (3)
C140.0412 (11)0.0337 (11)0.0476 (13)0.0000.0075 (10)0.000
C150.0347 (11)0.0388 (12)0.041 (4)0.004 (2)0.005 (3)−0.0062 (17)
C160.079 (4)0.047 (3)0.087 (6)0.006 (3)0.043 (5)0.005 (3)
C170.097 (5)0.056 (3)0.120 (7)0.005 (3)0.053 (5)0.017 (4)
C180.076 (3)0.0347 (19)0.113 (7)−0.001 (2)0.021 (5)0.004 (2)
C17A0.089 (4)0.035 (3)0.111 (6)0.008 (3)0.045 (4)−0.013 (3)
C16A0.071 (3)0.038 (2)0.070 (4)0.003 (2)0.035 (3)−0.004 (2)
C190.0502 (10)0.0450 (10)0.0678 (13)0.0025 (8)−0.0093 (9)0.0033 (9)
C200.0523 (13)0.106 (2)0.124 (3)−0.0045 (14)−0.0092 (15)0.042 (2)
C210.098 (2)0.143 (3)0.0621 (17)0.027 (2)−0.0057 (16)0.018 (2)
Ce—N12.4820 (17)C10—H10B0.9800
Ce—N1i2.4820 (17)C10—H10C0.9800
Ce—N22.4860 (14)C11—C121.490 (5)
Ce—N2i2.4860 (14)C11—C131.521 (5)
Ce—N3i2.4924 (15)C11—H111.0000
Ce—N32.4924 (15)C12—H12A0.9800
Ce—C142.906 (2)C12—H12B0.9800
Ce—C12.9071 (18)C12—H12C0.9800
Ce—C1i2.9071 (18)C13—H13A0.9800
N1—C11.328 (2)C13—H13B0.9800
N1—C111.458 (2)C13—H13C0.9800
N2—C11.319 (2)C14—N3i1.325 (2)
N2—C81.460 (2)C14—C15i1.498 (3)
N3—C141.325 (2)C14—C151.498 (3)
N3—C191.457 (2)C15—C161.3900
C1—C21.508 (2)C15—C16A1.3900
C2—C31.378 (3)C16—C171.3900
C2—C71.379 (3)C16—H160.9500
C3—C41.383 (3)C17—C181.3900
C3—H30.9500C17—H170.9500
C4—C51.363 (4)C18—C17A1.3900
C4—H40.9500C18—H180.9500
C5—C61.374 (4)C17A—C16A1.3900
C5—H50.9500C17A—H17A0.9500
C6—C71.389 (3)C16A—H16A0.9500
C6—H60.9500C19—C201.498 (4)
C7—H70.9500C19—C211.522 (4)
C8—C91.503 (4)C19—H191.0000
C8—C101.506 (3)C20—H20A0.9800
C8—H81.0000C20—H20B0.9800
C9—H9A0.9800C20—H20C0.9800
C9—H9B0.9800C21—H21A0.9800
C9—H9C0.9800C21—H21B0.9800
C10—H10A0.9800C21—H21C0.9800
N1—Ce—N1i97.57 (11)C8—C9—H9C109.5
N1—Ce—N253.95 (5)H9A—C9—H9C109.5
N1i—Ce—N2100.23 (6)H9B—C9—H9C109.5
N1—Ce—N2i100.23 (6)C8—C10—H10A109.5
N1i—Ce—N2i53.95 (5)C8—C10—H10B109.5
N2—Ce—N2i143.66 (8)H10A—C10—H10B109.5
N1—Ce—N3i151.12 (7)C8—C10—H10C109.5
N1i—Ce—N3i107.34 (7)H10A—C10—H10C109.5
N2—Ce—N3i106.11 (6)H10B—C10—H10C109.5
N2i—Ce—N3i106.13 (6)N1—C11—C12110.6 (2)
N1—Ce—N3107.34 (7)N1—C11—C13107.7 (2)
N1i—Ce—N3151.12 (7)C12—C11—C13108.2 (3)
N2—Ce—N3106.13 (6)N1—C11—H11110.1
N2i—Ce—N3106.11 (6)C12—C11—H11110.1
N3i—Ce—N354.12 (7)C13—C11—H11110.1
N1—Ce—C14131.22 (6)C11—C12—H12A109.5
N1i—Ce—C14131.22 (6)C11—C12—H12B109.5
N2—Ce—C14108.17 (4)H12A—C12—H12B109.5
N2i—Ce—C14108.17 (4)C11—C12—H12C109.5
N1i—Ce—C199.24 (7)H12A—C12—H12C109.5
N2i—Ce—C1123.14 (6)H12B—C12—H12C109.5
N3i—Ce—C1130.59 (6)C11—C13—H13A109.5
N3—Ce—C1109.60 (6)C11—C13—H13B109.5
C14—Ce—C1123.62 (4)H13A—C13—H13B109.5
N1—Ce—C1i99.24 (7)C11—C13—H13C109.5
N2—Ce—C1i123.14 (6)H13A—C13—H13C109.5
N3i—Ce—C1i109.60 (6)H13B—C13—H13C109.5
N3—Ce—C1i130.59 (6)N3—C14—N3i117.6 (2)
C14—Ce—C1i123.62 (4)N3—C14—C15i124.5 (6)
C1—Ce—C1i112.76 (8)N3i—C14—C15i117.6 (6)
C1—N1—C11122.56 (17)N3—C14—C15117.6 (6)
C1—N1—Ce94.58 (12)N3i—C14—C15124.5 (6)
C11—N1—Ce141.07 (13)N3—C14—Ce58.81 (11)
C1—N2—C8122.34 (16)N3i—C14—Ce58.81 (11)
C1—N2—Ce94.66 (10)C15i—C14—Ce173.9 (3)
C8—N2—Ce141.91 (12)C15—C14—Ce173.9 (3)
C14—N3—C19121.67 (16)C16—C15—C16A120.0
C14—N3—Ce94.14 (12)C16—C15—C14120.2 (5)
C19—N3—Ce143.45 (13)C16A—C15—C14119.8 (5)
N2—C1—N1116.73 (16)C17—C16—C15120.0
N2—C1—C2122.10 (15)C17—C16—H16120.0
N1—C1—C2121.17 (16)C15—C16—H16120.0
N2—C1—Ce58.46 (9)C16—C17—C18120.0
N1—C1—Ce58.33 (10)C16—C17—H17120.0
C2—C1—Ce177.18 (14)C18—C17—H17120.0
C3—C2—C7118.72 (18)C17A—C18—C17120.0
C3—C2—C1120.63 (18)C17A—C18—H18120.0
C7—C2—C1120.65 (18)C17—C18—H18120.0
C2—C3—C4121.0 (2)C18—C17A—C16A120.0
C2—C3—H3119.5C18—C17A—H17A120.0
C4—C3—H3119.5C16A—C17A—H17A120.0
C5—C4—C3120.1 (2)C17A—C16A—C15120.0
C5—C4—H4120.0C17A—C16A—H16A120.0
C3—C4—H4120.0C15—C16A—H16A120.0
C4—C5—C6119.7 (2)N3—C19—C20110.0 (2)
C4—C5—H5120.2N3—C19—C21109.4 (2)
C6—C5—H5120.2C20—C19—C21111.0 (3)
C5—C6—C7120.5 (2)N3—C19—H19108.8
C5—C6—H6119.8C20—C19—H19108.8
C7—C6—H6119.8C21—C19—H19108.8
C2—C7—C6120.0 (2)C19—C20—H20A109.5
C2—C7—H7120.0C19—C20—H20B109.5
C6—C7—H7120.0H20A—C20—H20B109.5
N2—C8—C9109.27 (18)C19—C20—H20C109.5
N2—C8—C10110.12 (17)H20A—C20—H20C109.5
C9—C8—C10110.5 (2)H20B—C20—H20C109.5
N2—C8—H8109.0C19—C21—H21A109.5
C9—C8—H8109.0C19—C21—H21B109.5
C10—C8—H8109.0H21A—C21—H21B109.5
C8—C9—H9A109.5C19—C21—H21C109.5
C8—C9—H9B109.5H21A—C21—H21C109.5
H9A—C9—H9B109.5H21B—C21—H21C109.5
N1i—Ce—N1—C195.52 (15)C14—Ce—C1—N2−61.08 (14)
N2—Ce—N1—C1−1.66 (13)C1i—Ce—C1—N2118.92 (14)
N2i—Ce—N1—C1150.12 (14)N1i—Ce—C1—N1−88.55 (18)
N3i—Ce—N1—C1−54.1 (2)N2—Ce—C1—N1177.0 (2)
N3—Ce—N1—C1−99.29 (15)N2i—Ce—C1—N1−35.84 (17)
C14—Ce—N1—C1−84.48 (15)N3i—Ce—C1—N1148.96 (14)
C1i—Ce—N1—C1122.86 (14)N3—Ce—C1—N189.91 (15)
N1i—Ce—N1—C11−67.9 (3)C14—Ce—C1—N1115.96 (14)
N2—Ce—N1—C11−165.1 (3)C1i—Ce—C1—N1−64.04 (14)
N2i—Ce—N1—C11−13.3 (3)N2—C1—C2—C3107.5 (2)
N3i—Ce—N1—C11142.4 (3)N1—C1—C2—C3−73.0 (3)
N3—Ce—N1—C1197.3 (3)N2—C1—C2—C7−73.4 (3)
C14—Ce—N1—C11112.1 (3)N1—C1—C2—C7106.2 (2)
C1—Ce—N1—C11−163.4 (4)C7—C2—C3—C40.7 (3)
C1i—Ce—N1—C11−40.5 (3)C1—C2—C3—C4179.88 (19)
N1—Ce—N2—C11.67 (13)C2—C3—C4—C5−0.4 (4)
N1i—Ce—N2—C1−90.29 (14)C3—C4—C5—C6−0.5 (4)
N2i—Ce—N2—C1−50.10 (12)C4—C5—C6—C71.1 (4)
N3i—Ce—N2—C1158.16 (12)C3—C2—C7—C6−0.2 (3)
N3—Ce—N2—C1101.64 (13)C1—C2—C7—C6−179.3 (2)
C14—Ce—N2—C1129.90 (12)C5—C6—C7—C2−0.8 (4)
C1i—Ce—N2—C1−74.56 (17)C1—N2—C8—C9−105.7 (3)
N1—Ce—N2—C8−165.3 (3)Ce—N2—C8—C958.8 (3)
N1i—Ce—N2—C8102.8 (2)C1—N2—C8—C10132.7 (2)
N2i—Ce—N2—C8143.0 (2)Ce—N2—C8—C10−62.8 (3)
N3i—Ce—N2—C8−8.8 (2)C1—N1—C11—C12−104.8 (3)
N3—Ce—N2—C8−65.3 (2)Ce—N1—C11—C1255.4 (4)
C14—Ce—N2—C8−37.0 (2)C1—N1—C11—C13137.2 (3)
C1—Ce—N2—C8−166.9 (3)Ce—N1—C11—C13−62.6 (4)
C1i—Ce—N2—C8118.5 (2)C19—N3—C14—N3i172.3 (2)
N1—Ce—N3—C14155.00 (8)C19—N3—C14—C15i−13.8 (4)
N1i—Ce—N3—C14−56.63 (17)Ce—N3—C14—C15i173.9 (3)
N2—Ce—N3—C1498.47 (9)C19—N3—C14—C15−2.0 (4)
N2i—Ce—N3—C14−98.51 (9)Ce—N3—C14—C15−174.3 (3)
C1—Ce—N3—C14126.50 (9)C19—N3—C14—Ce172.3 (2)
C1i—Ce—N3—C14−85.72 (11)N1—Ce—C14—N3−32.43 (11)
N1—Ce—N3—C19−14.0 (3)N1i—Ce—C14—N3147.57 (11)
N1i—Ce—N3—C19134.4 (2)N2—Ce—C14—N3−90.02 (10)
N2—Ce—N3—C19−70.5 (3)N2i—Ce—C14—N389.98 (10)
N2i—Ce—N3—C1992.5 (3)C1—Ce—C14—N3−65.41 (11)
N3i—Ce—N3—C19−169.0 (3)C1i—Ce—C14—N3114.59 (11)
C14—Ce—N3—C19−169.0 (3)N1—Ce—C14—N3i147.57 (11)
C1—Ce—N3—C19−42.5 (3)N1i—Ce—C14—N3i−32.43 (11)
C1i—Ce—N3—C19105.3 (3)N2—Ce—C14—N3i89.98 (10)
C8—N2—C1—N1167.7 (2)N2i—Ce—C14—N3i−90.02 (10)
Ce—N2—C1—N1−2.8 (2)C1—Ce—C14—N3i114.59 (11)
C8—N2—C1—C2−12.8 (3)C1i—Ce—C14—N3i−65.41 (11)
Ce—N2—C1—C2176.75 (17)N3—C14—C15—C1688.9 (6)
C8—N2—C1—Ce170.5 (2)N3i—C14—C15—C16−85.0 (5)
C11—N1—C1—N2170.5 (2)C15i—C14—C15—C16−144 (5)
Ce—N1—C1—N22.8 (2)N3—C14—C15—C16A−92.6 (5)
C11—N1—C1—C2−9.0 (4)N3i—C14—C15—C16A93.5 (6)
Ce—N1—C1—C2−176.75 (17)C15i—C14—C15—C16A34 (4)
C11—N1—C1—Ce167.7 (3)C14—C15—C16—C17178.5 (11)
N1—Ce—C1—N2−177.0 (2)C14—C15—C16A—C17A−178.5 (11)
N1i—Ce—C1—N294.41 (13)C14—N3—C19—C20134.4 (2)
N2i—Ce—C1—N2147.12 (11)Ce—N3—C19—C20−58.5 (4)
N3i—Ce—C1—N2−28.07 (16)C14—N3—C19—C21−103.4 (3)
N3—Ce—C1—N2−87.12 (13)Ce—N3—C19—C2163.7 (3)
  4 in total

1.  Synthesis and structural chemistry of non-cyclopentadienyl organolanthanide complexes.

Authors:  Frank T Edelmann; Dominique M M Freckmann; Herbert Schumann
Journal:  Chem Rev       Date:  2002-06       Impact factor: 60.622

2.  A short history of SHELX.

Authors:  George M Sheldrick
Journal:  Acta Crystallogr A       Date:  2007-12-21       Impact factor: 2.290

3.  Lanthanide amidinates and guanidinates: from laboratory curiosities to efficient homogeneous catalysts and precursors for rare-earth oxide thin films.

Authors:  Frank T Edelmann
Journal:  Chem Soc Rev       Date:  2009-04-08       Impact factor: 54.564

4.  Synthesis and characterization of volatile, thermally stable, reactive transition metal amidinates.

Authors:  Booyong S Lim; Antti Rahtu; Jin-Seong Park; Roy G Gordon
Journal:  Inorg Chem       Date:  2003-12-01       Impact factor: 5.165

  4 in total
  2 in total

1.  Crystal structures of two ytterbium(III) complexes comprising alkynylamidinate ligands.

Authors:  Sida Wang; Farid M Sroor; Phil Liebing; Volker Lorenz; Liane Hilfert; Frank T Edelmann
Journal:  Acta Crystallogr E Crystallogr Commun       Date:  2016-08-02

2.  Synthesis and structural characterization of four di-chlorido-bis-(cyclo-propyl-alkynyl-amidine)-metal complexes.

Authors:  Sida Wang; Phil Liebing; Felix Engelhardt; Liane Hilfert; Sabine Busse; Frank T Edelmann
Journal:  Acta Crystallogr E Crystallogr Commun       Date:  2018-10-26
  2 in total

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