Literature DB >> 25484764

Crystal structure of penta-kis-(ethyl-enedi-amine-κ(2) N,N')lanthanum(III) trichloride-ethylene-diamine-dichloromethane (1/1/1).

Hope T Sartain1, Richard J Staples2, Shannon M Biros1.   

Abstract

We report here the crystal structure of a ten-coordinate lanthanum(III) metal coordinated by five bidentate ethyl-enedi-amine ligands, [La(C2H8N2)5]Cl3·C2H8N2·CH2Cl2. One free ethyl-enedi-amine mol-ecule and three Cl(-) anions are also located in the asymmetric unit. The overall structure is held together by an extensive hydrogen-bonding network between the Cl(-) anions and the NH groups on the metal-bound ethyl-enedi-amine ligands. The free ethyl-enedi-amine mol-ecule is held in an ordered position by additional hydrogen bonds involving both the chlorides and -NH groups on the metal-bound ligands. One highly disordered mol-ecule of di-chloro-methane is located on an inversion center; however, all attempts to model this disorder were unsuccessful. The electron density in this space was removed using the BYPASS procedure [van der Sluis & Spek (1990 ▶). Acta Cryst. A46, 194-201].

Entities:  

Keywords:  crystal structure; ethyl­enedi­amine; rare earth element

Year:  2014        PMID: 25484764      PMCID: PMC4257261          DOI: 10.1107/S1600536814023289

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


Chemical context

The coordination chemistry of rare earth elements has impact in the areas of nuclear power, light-emitting diodes, medical imaging agents, and fluorescent sensors. The geometry of this ten-coordinate lanthanum(III) structure is of inter­est to researchers developing high denticity ligands for lanthanides and actinides.

Structural commentary

The asymmetric unit of the title compound contains one LaIII ion chelated by five ethyl­enedi­amine mol­ecules, one unbound ethyl­enedi­amine mol­ecule, and three chloride ions (Fig. 1 ▶). The coordination geometry of the La3+ ion resembles a distorted bicapped square anti­prism [range of La—N bond lengths = 2.715 (3)–2.876 (3) Å]. Inter­estingly, all three Cl− ions and the free ethyl­enedi­amine mol­ecule are involved in an extensive hydrogen-bonding network that acts to rigidify the three-dimensional structure within the crystal lattice (see Figs. 2 ▶ and 3 ▶, and Table 1 ▶).
Figure 1

The asymmetric unit of the title crystal structure, showing displacement ellipsoids at the 50% probability level. H atoms have been omitted for clarity. Color codes: black C, blue N, purple La, light blue Cl.

Figure 2

The hydrogen-bonding network surrounding one chair-shaped void, viewed down the a axis. The center of the void lies on an inversion center. H atoms not involved in a hydrogen bond have been omitted for clarity. Hydrogen bonds are shown as red dashed lines. Color codes as in Fig. 1 ▶.

Figure 3

The extended hydrogen-bonding network forming a honeycomb-like network, viewed down the a axis. H atoms not involved in a hydrogen bond have been omitted for clarity. Hydrogen bonds are shown as red dashed lines. Color codes as in Fig. 1 ▶.

Table 1

Hydrogen-bond geometry (, )

DHA DHHA D A DHA
N1H1CCl2i 0.912.533.405(3)160
N2H2CN110.912.403.284(5)164
N2H2DCl2ii 0.912.723.417(3)134
N3H3DCl20.912.593.497(3)176
N4H4DN110.912.493.267(5)144
N5H5CCl2i 0.912.743.573(3)153
N7H7CCl3iii 0.912.543.376(3)154
N7H7DCl30.912.633.470(3)154
N8H8DCl20.912.403.292(3)168
N10H10CCl2ii 0.912.573.445(3)161
N11H11DCl2ii 1.00(5)2.83(5)3.642(5)139(4)

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

Each asymmetric unit contains one small void that lies on an inversion center (see the Supra­molecular features and Refinement sections for more discussion on the contents and treatment of this void).

Supra­molecular features

Six La3+-containing complex cations and twelve Cl− anions are arranged in a rough hexa­gon in the bc plane (Fig. 2 ▶). The center of this hexa­gon contains two free ethyl­enedi­amine mol­ecules involved in extensive hydrogen bonding with the Cl− ions and bound –NH groups of the lanthanum complex. The relatively non-polar portion of the free ethyl­enedi­amine mol­ecules face the inter­ior of the hexa­gon, which creates a void that resembles the shape of the chair conformation of cyclo­hexane. There are two of these voids per unit cell (see Refinement section) each located about an inversion center and likely containing one highly disordered di­chloro­methane mol­ecule. A view of the packing down the a axis (Fig. 3 ▶) reveals that the lanthanum complexes are arranged into a honeycomb-like lattice. Each side of the lanthanum complex supra­molecular hexa­gon is shared with a neighboring hexa­gon and held together with extensive hydrogen-bonding inter­actions (Table 1 ▶).

Database survey

Related structures involving a lanthanum(III) ion coordinated by three or more ethyl­enedi­amine ligands have been reported by Jia et al. (2005 ▶, 2006 ▶), Feng et al. (2009 ▶) and Chen et al. (2009 ▶).

Synthesis and crystallization

Crystals suitable for X-ray diffraction studies were serendip­itously grown from the vapor diffusion of a 3:1 ethyl­enedi­amine–di­chloro­methane solution into a saturated solution of the lanthanum(III)–ligand complex previously reported by our group (Sartain et al., 2014 ▶) in aceto­nitrile.

Refinement

Crystal data, data collection and structure refinement details are summarized in Table 2 ▶. H atoms were placed in calculated positions and constrained to ride on their parent atoms, with U iso(H) = 1.2U eq(C,N) for methyl­ene and amino groups. In the free ethyl­enedi­amine mol­ecule, N—H distances were restrained to 0.9 Å using DFIX instructions in SHELXL (Sheldrick, 2008 ▶). If these hydrogens were left unrestrained, the result was bond lengths that were outside accepted values.
Table 2

Experimental details

Crystal data
Chemical formula[La(C2H8N2)5]Cl3C2H8N2CH2Cl2
M r 690.78
Crystal system, space groupMonoclinic, P21/n
Temperature (K)173
a, b, c ()8.8070(7), 14.6530(12), 22.1110(18)
()92.1560(9)
V (3)2851.4(4)
Z 4
Radiation typeMo K
(mm1)1.99
Crystal size (mm)0.26 0.20 0.08
 
Data collection
DiffractometerBruker APEXII CCD
Absorption correctionMulti-scan (SADABS; Bruker, 2012)
T min, T max 0.641, 0.745
No. of measured, independent and observed [I > 2(I)] reflections24978, 5609, 4502
R int 0.056
(sin /)max (1)0.618
 
Refinement
R[F 2 > 2(F 2)], wR(F 2), S 0.033, 0.077, 1.07
No. of reflections5609
No. of parameters265
No. of restraints2
H-atom treatmentH atoms treated by a mixture of independent and constrained refinement
max, min (e 3)0.80, 0.48

Computer programs: APEX2 and SAINT (Bruker, 2012 ▶), SHELXS2013 and SHELXL97 (Sheldrick, 2008 ▶), CrystalMaker (Palmer, 2007 ▶) and OLEX2 (Dolomanov et al., 2009 ▶, 2014 ▶).

There are two small void spaces, each located on an inversion center, per unit cell. The coordinates of the inversion centers are (0, ½, 0) and (½, 0, ½). Attempts to model a disordered di­chloro­methane mol­ecule in this void were unsuccessful. The intensity contribution of the disordered solvent mol­ecules was removed by the BYPASS procedure (van der Sluis & Spek, 1990 ▶), as implemented in OLEX2 (Dolomanov et al., 2009 ▶, 2014 ▶). The size of the void was calculated to be 153.6 Å3, containing approximately 35 electrons. Crystal structure: contains datablock(s) I. DOI: 10.1107/S1600536814023289/pk2532sup1.cif Structure factors: contains datablock(s) I. DOI: 10.1107/S1600536814023289/pk2532Isup2.hkl CCDC reference: 1030544 Additional supporting information: crystallographic information; 3D view; checkCIF report
[La(C2H8N2)5]Cl3·C2H8N2·CH2Cl2F(000) = 1248
Mr = 690.78Dx = 1.609 Mg m3
Monoclinic, P21/nMo Kα radiation, λ = 0.71073 Å
a = 8.8070 (7) ÅCell parameters from 9898 reflections
b = 14.6530 (12) Åθ = 2.3–26.0°
c = 22.1110 (18) ŵ = 1.99 mm1
β = 92.1560 (9)°T = 173 K
V = 2851.4 (4) Å3Block, colourless
Z = 40.26 × 0.20 × 0.08 mm
Bruker APEXII CCD diffractometer4502 reflections with I > 2σ(I)
φ and ω scansRint = 0.056
Absorption correction: multi-scan (SADABS; Bruker, 2012)θmax = 26.0°, θmin = 1.7°
Tmin = 0.641, Tmax = 0.745h = −10→10
24978 measured reflectionsk = −18→18
5609 independent reflectionsl = −27→27
Refinement on F2Primary atom site location: structure-invariant direct methods
Least-squares matrix: fullHydrogen site location: mixed
R[F2 > 2σ(F2)] = 0.033H atoms treated by a mixture of independent and constrained refinement
wR(F2) = 0.077w = 1/[σ2(Fo2) + (0.0267P)2 + 1.7999P] where P = (Fo2 + 2Fc2)/3
S = 1.07(Δ/σ)max = 0.001
5609 reflectionsΔρmax = 0.80 e Å3
265 parametersΔρmin = −0.48 e Å3
2 restraints
Experimental. Absorption correction: SADABS-2012/1 (Bruker, 2012) was used for absorption correction. wR2(int) was 0.0852 before and 0.0598 after correction. The Ratio of minimum to maximum transmission is 0.8603.
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.
xyzUiso*/Ueq
C10.2628 (4)0.5116 (2)0.18320 (17)0.0262 (9)
H1A0.33190.51610.14910.031*
H1B0.16600.54210.17120.031*
C20.2336 (4)0.4129 (3)0.19737 (18)0.0266 (9)
H2A0.16320.40830.23110.032*
H2B0.18600.38230.16150.032*
C30.7194 (5)0.5131 (3)0.16495 (17)0.0310 (9)
H3A0.77600.55490.13880.037*
H3B0.62420.49490.14290.037*
C40.8134 (5)0.4305 (3)0.17969 (19)0.0339 (10)
H4A0.83980.39910.14190.041*
H4B0.90900.44900.20130.041*
C50.3650 (5)0.6338 (3)0.40189 (17)0.0305 (9)
H5A0.42080.62710.44140.037*
H5B0.27160.66940.40850.037*
C60.4623 (5)0.6844 (3)0.35888 (19)0.0344 (10)
H6A0.40390.69610.32050.041*
H6B0.49290.74390.37660.041*
C70.7721 (4)0.4076 (3)0.44040 (17)0.0294 (9)
H7A0.77950.34220.42960.035*
H7B0.79650.41390.48430.035*
C80.8836 (4)0.4622 (3)0.40492 (17)0.0269 (9)
H8A0.88350.52640.41870.032*
H8B0.98730.43740.41210.032*
C90.3576 (4)0.2426 (2)0.35430 (17)0.0237 (8)
H9A0.33270.21480.31430.028*
H9B0.29490.21250.38470.028*
C100.5227 (4)0.2286 (2)0.37051 (18)0.0257 (9)
H10A0.54660.25320.41150.031*
H10B0.54680.16260.37070.031*
C110.4553 (7)0.3735 (4)0.0489 (2)0.0655 (16)
H11A0.50730.43250.04280.079*
H11B0.35970.38680.06940.079*
C120.4146 (6)0.3342 (4)−0.0121 (2)0.0622 (15)
H12A0.36090.2755−0.00720.075*
H12B0.34520.3765−0.03460.075*
N10.3317 (3)0.55679 (19)0.23696 (13)0.0219 (7)
H1C0.25580.57390.26130.026*
H1D0.37850.60860.22470.026*
N20.3778 (3)0.3682 (2)0.21431 (14)0.0252 (7)
H2C0.43560.36530.18110.030*
H2D0.35830.31000.22600.030*
N30.6840 (3)0.5592 (2)0.22174 (14)0.0256 (7)
H3C0.62360.60810.21260.031*
H3D0.77220.58100.23900.031*
N40.7274 (3)0.3678 (2)0.21809 (14)0.0260 (7)
H4C0.79450.33010.23800.031*
H4D0.66630.33250.19360.031*
N50.3228 (3)0.5422 (2)0.37834 (14)0.0256 (7)
H5C0.23450.54750.35590.031*
H5D0.30410.50540.41040.031*
N60.5999 (4)0.6293 (2)0.34667 (15)0.0329 (8)
H6C0.65880.62600.38130.039*
H6D0.65450.65900.31860.039*
N70.6166 (3)0.4406 (2)0.42665 (13)0.0245 (7)
H7C0.60570.49640.44400.029*
H7D0.54970.40200.44390.029*
N80.8420 (3)0.45799 (19)0.33983 (13)0.0212 (7)
H8C0.88600.40730.32450.025*
H8D0.88440.50710.32180.025*
N90.3234 (3)0.34180 (19)0.35234 (13)0.0209 (7)
H9C0.30590.36060.39070.025*
H9D0.23570.34990.32990.025*
N100.6137 (3)0.27590 (19)0.32585 (14)0.0226 (7)
H10C0.60340.24550.29000.027*
H10D0.71320.27250.33830.027*
N110.5512 (6)0.3182 (4)0.08964 (19)0.0620 (13)
H11C0.637 (6)0.307 (4)0.067 (2)0.074*
H11D0.517 (6)0.255 (4)0.100 (2)0.074*
N120.5498 (5)0.3195 (4)−0.04637 (19)0.0626 (13)
H12C0.517 (6)0.301 (4)−0.0835 (13)0.075*
H12D0.599 (5)0.271 (3)−0.028 (2)0.075*
Cl21.01159 (10)0.64537 (6)0.29560 (4)0.0277 (2)
Cl30.29715 (13)0.36410 (9)0.49867 (5)0.0470 (3)
La10.54253 (2)0.45443 (2)0.30593 (2)0.01558 (7)
Cl10.99179 (10)0.25647 (6)0.30115 (4)0.0258 (2)
U11U22U33U12U13U23
C10.027 (2)0.023 (2)0.028 (2)0.0032 (17)−0.0073 (17)0.0034 (17)
C20.023 (2)0.026 (2)0.031 (2)−0.0002 (17)−0.0042 (17)−0.0012 (17)
C30.029 (2)0.040 (2)0.024 (2)−0.0064 (19)0.0041 (18)0.0083 (18)
C40.026 (2)0.043 (3)0.032 (2)0.0007 (19)0.0099 (19)−0.0028 (19)
C50.036 (2)0.031 (2)0.025 (2)0.0080 (19)0.0063 (18)−0.0065 (18)
C60.051 (3)0.0153 (19)0.036 (2)0.0070 (19)−0.004 (2)−0.0030 (18)
C70.028 (2)0.034 (2)0.026 (2)−0.0024 (18)−0.0077 (17)0.0045 (18)
C80.023 (2)0.028 (2)0.029 (2)−0.0052 (17)−0.0054 (17)−0.0026 (17)
C90.022 (2)0.0191 (19)0.030 (2)−0.0055 (16)0.0024 (16)0.0000 (16)
C100.023 (2)0.0169 (18)0.037 (2)−0.0005 (16)−0.0039 (17)0.0050 (17)
C110.093 (4)0.062 (4)0.041 (3)0.004 (3)0.005 (3)−0.009 (3)
C120.069 (4)0.071 (4)0.047 (3)0.010 (3)0.005 (3)−0.014 (3)
N10.0183 (15)0.0187 (16)0.0285 (17)0.0004 (13)−0.0002 (13)0.0018 (13)
N20.0290 (18)0.0188 (16)0.0277 (18)0.0046 (14)−0.0014 (14)−0.0011 (14)
N30.0191 (16)0.0244 (18)0.0331 (19)0.0015 (13)−0.0003 (14)0.0061 (14)
N40.0235 (17)0.0281 (18)0.0262 (17)0.0037 (14)−0.0023 (14)−0.0019 (15)
N50.0274 (17)0.0266 (17)0.0230 (17)0.0043 (14)0.0027 (14)0.0037 (14)
N60.041 (2)0.0261 (18)0.0322 (19)−0.0063 (16)0.0094 (16)−0.0028 (15)
N70.0230 (16)0.0242 (17)0.0261 (18)−0.0044 (14)−0.0022 (14)0.0012 (14)
N80.0227 (16)0.0177 (15)0.0233 (16)−0.0037 (13)0.0027 (13)0.0012 (13)
N90.0175 (15)0.0222 (16)0.0231 (16)0.0008 (13)0.0001 (13)−0.0019 (13)
N100.0181 (16)0.0167 (15)0.0328 (18)0.0022 (13)−0.0012 (14)−0.0048 (14)
N110.079 (4)0.076 (3)0.031 (2)−0.011 (3)0.003 (2)0.004 (2)
N120.058 (3)0.093 (4)0.037 (3)0.007 (3)0.004 (2)−0.005 (3)
Cl20.0252 (5)0.0238 (5)0.0344 (5)−0.0039 (4)0.0016 (4)0.0055 (4)
Cl30.0445 (7)0.0638 (8)0.0329 (6)−0.0136 (6)0.0039 (5)−0.0157 (6)
La10.01471 (11)0.01412 (11)0.01787 (12)0.00034 (9)0.00007 (8)−0.00003 (9)
Cl10.0181 (4)0.0217 (5)0.0371 (5)0.0024 (4)−0.0034 (4)−0.0033 (4)
C1—H1A0.9900C11—N111.458 (7)
C1—H1B0.9900C12—H12A0.9900
C1—C21.504 (5)C12—H12B0.9900
C1—N11.472 (5)C12—N121.451 (6)
C2—H2A0.9900N1—H1C0.9100
C2—H2B0.9900N1—H1D0.9100
C2—N21.465 (4)N1—La12.794 (3)
C3—H3A0.9900N2—H2C0.9100
C3—H3B0.9900N2—H2D0.9100
C3—C41.495 (6)N2—La12.754 (3)
C3—N31.470 (5)N3—H3C0.9100
C4—H4A0.9900N3—H3D0.9100
C4—H4B0.9900N3—La12.748 (3)
C4—N41.479 (5)N4—H4C0.9100
C5—H5A0.9900N4—H4D0.9100
C5—H5B0.9900N4—La12.876 (3)
C5—C61.500 (5)N5—H5C0.9100
C5—N51.481 (5)N5—H5D0.9100
C6—H6A0.9900N5—La12.863 (3)
C6—H6B0.9900N6—H6C0.9100
C6—N61.490 (5)N6—H6D0.9100
C7—H7A0.9900N6—La12.756 (3)
C7—H7B0.9900N7—H7C0.9100
C7—C81.509 (5)N7—H7D0.9100
C7—N71.474 (4)N7—La12.731 (3)
C8—H8A0.9900N8—H8C0.9100
C8—H8B0.9900N8—H8D0.9100
C8—N81.473 (5)N8—La12.715 (3)
C9—H9A0.9900N9—H9C0.9100
C9—H9B0.9900N9—H9D0.9100
C9—C101.498 (5)N9—La12.766 (3)
C9—N91.485 (4)N10—H10C0.9100
C10—H10A0.9900N10—H10D0.9100
C10—H10B0.9900N10—La12.722 (3)
C10—N101.469 (4)N11—H11C0.94 (5)
C11—H11A0.9900N11—H11D1.00 (5)
C11—H11B0.9900N12—H12C0.899 (19)
C11—C121.498 (7)N12—H12D0.915 (19)
H1A—C1—H1B108.2C4—N4—La1115.4 (2)
C2—C1—H1A109.8H4C—N4—H4D107.5
C2—C1—H1B109.8La1—N4—H4C108.4
N1—C1—H1A109.8La1—N4—H4D108.4
N1—C1—H1B109.8C5—N5—H5C108.3
N1—C1—C2109.5 (3)C5—N5—H5D108.3
C1—C2—H2A109.8C5—N5—La1115.9 (2)
C1—C2—H2B109.8H5C—N5—H5D107.4
H2A—C2—H2B108.3La1—N5—H5C108.3
N2—C2—C1109.3 (3)La1—N5—H5D108.3
N2—C2—H2A109.8C6—N6—H6C108.5
N2—C2—H2B109.8C6—N6—H6D108.5
H3A—C3—H3B108.3C6—N6—La1115.0 (2)
C4—C3—H3A110.0H6C—N6—H6D107.5
C4—C3—H3B110.0La1—N6—H6C108.5
N3—C3—H3A110.0La1—N6—H6D108.5
N3—C3—H3B110.0C7—N7—H7C108.7
N3—C3—C4108.6 (3)C7—N7—H7D108.7
C3—C4—H4A109.7C7—N7—La1114.3 (2)
C3—C4—H4B109.7H7C—N7—H7D107.6
H4A—C4—H4B108.2La1—N7—H7C108.7
N4—C4—C3109.6 (3)La1—N7—H7D108.7
N4—C4—H4A109.7C8—N8—H8C107.7
N4—C4—H4B109.7C8—N8—H8D107.7
H5A—C5—H5B108.0C8—N8—La1118.3 (2)
C6—C5—H5A109.3H8C—N8—H8D107.1
C6—C5—H5B109.3La1—N8—H8C107.7
N5—C5—H5A109.3La1—N8—H8D107.7
N5—C5—H5B109.3C9—N9—H9C108.1
N5—C5—C6111.5 (3)C9—N9—H9D108.1
C5—C6—H6A109.8C9—N9—La1116.8 (2)
C5—C6—H6B109.8H9C—N9—H9D107.3
H6A—C6—H6B108.2La1—N9—H9C108.1
N6—C6—C5109.6 (3)La1—N9—H9D108.1
N6—C6—H6A109.8C10—N10—H10C108.4
N6—C6—H6B109.8C10—N10—H10D108.4
H7A—C7—H7B108.2C10—N10—La1115.7 (2)
C8—C7—H7A109.7H10C—N10—H10D107.4
C8—C7—H7B109.7La1—N10—H10C108.4
N7—C7—H7A109.7La1—N10—H10D108.4
N7—C7—H7B109.7C11—N11—H11C103 (3)
N7—C7—C8109.7 (3)C11—N11—H11D119 (3)
C7—C8—H8A109.6H11C—N11—H11D103 (4)
C7—C8—H8B109.6C12—N12—H12C106 (4)
H8A—C8—H8B108.2C12—N12—H12D106 (3)
N8—C8—C7110.1 (3)H12C—N12—H12D107 (5)
N8—C8—H8A109.6N1—La1—N4104.45 (9)
N8—C8—H8B109.6N1—La1—N567.35 (9)
H9A—C9—H9B108.2N2—La1—N161.58 (8)
C10—C9—H9A109.8N2—La1—N466.21 (9)
C10—C9—H9B109.8N2—La1—N5105.61 (9)
N9—C9—H9A109.8N2—La1—N6138.76 (10)
N9—C9—H9B109.8N2—La1—N969.13 (9)
N9—C9—C10109.5 (3)N3—La1—N168.85 (9)
C9—C10—H10A109.9N3—La1—N289.86 (9)
C9—C10—H10B109.9N3—La1—N460.42 (9)
H10A—C10—H10B108.3N3—La1—N5117.46 (9)
N10—C10—C9108.9 (3)N3—La1—N667.65 (9)
N10—C10—H10A109.9N3—La1—N9157.71 (9)
N10—C10—H10B109.9N5—La1—N4170.99 (9)
H11A—C11—H11B107.3N6—La1—N177.84 (9)
C12—C11—H11A108.0N6—La1—N4121.97 (9)
C12—C11—H11B108.0N6—La1—N561.26 (9)
N11—C11—H11A108.0N6—La1—N9123.74 (9)
N11—C11—H11B108.0N7—La1—N1134.62 (9)
N11—C11—C12117.1 (5)N7—La1—N2141.70 (9)
C11—C12—H12A109.5N7—La1—N3127.29 (9)
C11—C12—H12B109.5N7—La1—N4120.46 (9)
H12A—C12—H12B108.1N7—La1—N568.18 (9)
N12—C12—C11110.7 (5)N7—La1—N673.46 (9)
N12—C12—H12A109.5N7—La1—N974.78 (9)
N12—C12—H12B109.5N8—La1—N1139.36 (8)
C1—N1—H1C108.2N8—La1—N2133.73 (9)
C1—N1—H1D108.2N8—La1—N373.49 (9)
C1—N1—La1116.4 (2)N8—La1—N468.06 (9)
H1C—N1—H1D107.3N8—La1—N5120.47 (9)
La1—N1—H1C108.2N8—La1—N674.19 (9)
La1—N1—H1D108.2N8—La1—N762.48 (9)
C2—N2—H2C108.7N8—La1—N9126.37 (8)
C2—N2—H2D108.7N8—La1—N1076.02 (9)
C2—N2—La1114.2 (2)N9—La1—N193.69 (9)
H2C—N2—H2D107.6N9—La1—N4114.06 (8)
La1—N2—H2C108.7N9—La1—N564.21 (8)
La1—N2—H2D108.7N10—La1—N1138.45 (9)
C3—N3—H3C108.3N10—La1—N277.87 (9)
C3—N3—H3D108.3N10—La1—N3122.62 (9)
C3—N3—La1116.0 (2)N10—La1—N463.40 (9)
H3C—N3—H3D107.4N10—La1—N5119.86 (9)
La1—N3—H3C108.3N10—La1—N6143.34 (10)
La1—N3—H3D108.3N10—La1—N774.08 (9)
C4—N4—H4C108.4N10—La1—N961.72 (8)
C4—N4—H4D108.4
C1—C2—N2—La153.4 (3)C9—C10—N10—La151.9 (3)
C2—C1—N1—La138.3 (4)C10—C9—N9—La137.7 (4)
C3—C4—N4—La1−37.3 (4)N1—C1—C2—N2−60.2 (4)
C4—C3—N3—La1−55.8 (4)N3—C3—C4—N460.3 (4)
C5—C6—N6—La154.5 (4)N5—C5—C6—N6−56.6 (4)
C6—C5—N5—La132.3 (4)N7—C7—C8—N8−55.7 (4)
C7—C8—N8—La135.5 (4)N9—C9—C10—N10−57.8 (4)
C8—C7—N7—La150.1 (3)N11—C11—C12—N12−62.1 (7)
D—H···AD—HH···AD···AD—H···A
N1—H1C···Cl2i0.912.533.405 (3)160
N2—H2C···N110.912.403.284 (5)164
N2—H2D···Cl2ii0.912.723.417 (3)134
N3—H3D···Cl20.912.593.497 (3)176
N4—H4D···N110.912.493.267 (5)144
N5—H5C···Cl2i0.912.743.573 (3)153
N7—H7C···Cl3iii0.912.543.376 (3)154
N7—H7D···Cl30.912.633.470 (3)154
N8—H8D···Cl20.912.403.292 (3)168
N10—H10C···Cl2ii0.912.573.445 (3)161
N11—H11D···Cl2ii1.00 (5)2.83 (5)3.642 (5)139 (4)
  4 in total

1.  Solvothermal syntheses of [Ln(en)3(H2O)x(mu(3-x)-SbS4)] (Ln = La, x = 0; Ln = Nd, x = 1) and [Ln(en)4]SbS4.0.5en (Ln = Eu, Dy, Yb): a systematic study on the formation and crystal structures of new lanthanide thioantimonates(V).

Authors:  Dingxian Jia; Qianxin Zhao; Yong Zhang; Jie Dai; Jinglin Zuo
Journal:  Inorg Chem       Date:  2005-11-28       Impact factor: 5.165

2.  A short history of SHELX.

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

3.  An unprecedented mu4-Sn2Se9 ligand: solvothermal syntheses and characterizations of novel lanthanum selenidostannates [{La(dien)2}4(mu4-Sn2Se9)(mu-Sn2Se6)]infinity and [La2(en)8(mu-Se2)]Sn2Se6.

Authors:  Jiang-Fang Chen; Qin-Yan Jin; Ying-Li Pan; Yong Zhang; Ding-Xian Jia
Journal:  Chem Commun (Camb)       Date:  2009-10-21       Impact factor: 6.222

4.  Quaternary tin(IV) antimony(III) sulfide decorated with lanthanum(III) ethylenediamine complexes: [La(en)4SbSnS5]2 x 0.5 H2O.

Authors:  Mei-Ling Feng; Dong Ye; Xiao-Ying Huang
Journal:  Inorg Chem       Date:  2009-09-07       Impact factor: 5.165

  4 in total

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