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In the title compound, [PtCl2(C13H21N5)]·0.5CH3NO2, the PtII atom is coordinated in a slightly distorted square-planar geometry by two Cl atoms and two N atoms of the bidentate ligand. The (1,3,5-tri­aza­penta­diene)PtII metalla ring is slightly bent and does not conjugate with the aromatic ring. In the crystal, N—H...Cl hydrogen bonds link the complex mol­ecules, forming chains along [001]. The nitromethane solvent molecule shows half-occupancy and is disordered over two sets of sites about an inversion centre.

Supporting information

cif

Crystallographic Information File (CIF) https://doi.org/10.1107/S1600536814003894/zq2215sup1.cif
Contains datablock I

hkl

Structure factor file (CIF format) https://doi.org/10.1107/S1600536814003894/zq2215Isup2.hkl
Contains datablock I

CCDC reference: 987902

Key indicators

  • Single-crystal X-ray study
  • T = 100 K
  • Mean [sigma](C-C) = 0.002 Å
  • Disorder in solvent or counterion
  • R factor = 0.015
  • wR factor = 0.035
  • Data-to-parameter ratio = 39.9

checkCIF/PLATON results

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Alert level C PLAT041_ALERT_1_C Calc. and Reported SumFormula Strings Differ Please Check PLAT413_ALERT_2_C Short Inter XH3 .. XHn H1C .. H1C .. 2.11 Ang. PLAT911_ALERT_3_C Missing # FCF Refl Between THmin & STh/L= 0.600 6 Why ?
Alert level G PLAT002_ALERT_2_G Number of Distance or Angle Restraints on AtSite 4 Note PLAT005_ALERT_5_G No _iucr_refine_instructions_details in the CIF Please Do ! PLAT007_ALERT_5_G Number of Unrefined Donor-H Atoms .............. 2 Why ? PLAT042_ALERT_1_G Calc. and Reported MoietyFormula Strings Differ Please Check PLAT045_ALERT_1_G Calculated and Reported Z Differ by ............ 0.50 Ratio PLAT083_ALERT_2_G SHELXL Second Parameter in WGHT Unusually Large. 5.91 Why ? PLAT128_ALERT_4_G Alternate Setting for Input Space-Group C2/c I2/a Note PLAT232_ALERT_2_G Hirshfeld Test Diff (M-X) Pt1 -- Cl1 .. 8.8 su PLAT232_ALERT_2_G Hirshfeld Test Diff (M-X) Pt1 -- Cl2 .. 13.9 su PLAT302_ALERT_4_G Anion/Solvent Disorder ............ Percentage = 100 Note PLAT311_ALERT_2_G Isolated Disordered Oxygen Atom (No H's ?) ..... O2 Check PLAT860_ALERT_3_G Number of Least-Squares Restraints ............. 2 Note PLAT910_ALERT_3_G Missing # of FCF Reflections Below Th(Min) ..... 1 Why ? PLAT912_ALERT_4_G Missing # of FCF Reflections Above STh/L= 0.600 42 Note
0 ALERT level A = Most likely a serious problem - resolve or explain 0 ALERT level B = A potentially serious problem, consider carefully 3 ALERT level C = Check. Ensure it is not caused by an omission or oversight 14 ALERT level G = General information/check it is not something unexpected 3 ALERT type 1 CIF construction/syntax error, inconsistent or missing data 6 ALERT type 2 Indicator that the structure model may be wrong or deficient 3 ALERT type 3 Indicator that the structure quality may be low 3 ALERT type 4 Improvement, methodology, query or suggestion 2 ALERT type 5 Informative message, check

Introduction top

The title complex (I) was obtained in the framework of our project devoted to the intra­molecular rearrangement of carbamimidoyl­amidoxime and di­alkyl­cyanamide ligands to furnish amidrazone complexes (Bolotin et al., 2013). The luminescent properties of 1,3,5-tri­aza­penta­diene metal complexes and the catalytic activity of some related complexes have been reported in the literature (Gushchin et al., 2008; Kopylovich et al., 2011; Sarova et al., 2006).

Experimental top

Synthesis and crystallization top

The platinum complex was synthesized by the described method (Bolotin et al., 2013). Crystals of I suitable for X-ray diffraction were obtained by a slow evaporation of a nitro­methane solution of the complex at room temperature in air.

Refinement top

Crystal data, data collection and structure refinement details are summarized in Table 1. The solvent of crystallization (MeNO2) was disordered over two sites about an inversion centre with equal occupancies. The NH hydrogen atoms were located from the difference Fourier map but constrained to ride on their parent atom, with Uiso = 1.5 Ueq(parent atom). Other hydrogen atoms were positioned geometrically and constrained to ride on their parent atoms, with C—H = 0.95-0.98 Å, and Uiso = 1.2-1.5 Ueq(parent atom). The highest peak is located 0.68 Å from atom Pt1 and the deepest hole is located 0.64 Å from atom Pt1.

Results and discussion top

Compound I crystallizes from MeNO2 as hemisolvate [PtCl2(C13H21N5)].0.5MeNO2. Nitro­methane molecules incorporated in the crystals lattice are disordered over two sites with equal occupancies. The coordination polyhedron of platinum exhibits a typical square-planar geometry. All bond angles around the PtII center are close to 90°. The Pt–Cl distances (2.3223 (3) and 2.3279 (3) Å) are specific for the PtII–Cl bonds, the Pt–Nimine bond length of 1.9809 (11) Å is a characteristic value in (imine)PtII species, while the Pt–Nhydrazone bond length (2.0309 (11) Å) is characteristic for PtII–Nsp2 complexes (Orpen et al., 1989).

The C–Nimine and C–Nhydrazone bond lengths are typical C=N double bonds, equal to 1.2966 (16) Å and 1.3049 (16) Å, respectively, while the amide N–(C=N)imine, N–(C=N)hydrazone and the C–NMe2 distances are close to normal single bond values [1.3826 (17), 1.3660 (17), and 1.3408 (17) Å, respectively] (Allen et al., 1987). The N–N distance of 1.4402 (16) Å is specific for a normal single Nsp2–Nsp3 bond (Allen et al., 1987).

In the molecular structure, the (1,3,5-tri­aza­penta­diene)PtII ring is slightly bent and does not conjugate with the aromatic ring. The dihedral angle between the mean plane of the aromatic ring C4/C10 and the atoms N1/C3/N3 is 73.76 (9)°. All bond angles in this metallacycle are close to 120°, except the (N=C)imine–N–(C=N)hydrazone angle, which is equal to 127.96 (11)° and the N–Pt–N angle, which is close to 90° [88.49 (5)°]. Weak inter­molecular H-bondings between the amidoxime amide group and one of the chlorine atoms were observed in the crystal structure.

Related literature top

For the luminescent properties of 1,3,5-triazapentadiene metal complexes, see: Gushchin et al. (2008); Kopylovich & Pombeiro (2011); Sarova et al. (2006) and for the catalytic activity of related complexes, see: Kopylovich & Pombeiro (2011). For the synthesis of [PtCl2(C13H21N5)] and similar compounds, see: Bolotin et al. (2013). For standard bondlengths, see: Allen et al. (1987); Orpen et al. (1989).

Computing details top

Data collection: APEX2 (Bruker, 2010); cell refinement: SAINT (Bruker, 2010); data reduction: SAINT (Bruker, 2010); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008b); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008b); molecular graphics: CrystalMaker (CrystalMaker Software, 2011); software used to prepare material for publication: SHELXL97 (Sheldrick, 2008b).

Figures top
[Figure 1] Fig. 1. View of the title complex. Thermal ellipsoids are drawn at the 50% probability level. Pt atoms are pale blue, chlorine, carbon, and nitrogen atoms are green, grey, and blue, respectively. The disordered nitromethane of crystallization has been omitted for clarity.
Dichlorido[N-(N,N-dimethylcarbamimidoyl)-N',N',4-trimethylbenzohydrazonamide]platinum(II) nitromethane hemisolvate top
Crystal data top
[PtCl2(C13H21N5)]·0.5CH3NO2F(000) = 2096
Mr = 543.86Dx = 1.958 Mg m3
Monoclinic, C2/cMo Kα radiation, λ = 0.71073 Å
Hall symbol: -C 2ycCell parameters from 9933 reflections
a = 20.7561 (3) Åθ = 3.2–36.4°
b = 15.1847 (3) ŵ = 7.91 mm1
c = 14.5191 (2) ÅT = 100 K
β = 126.255 (1)°Block, yellow
V = 3690.1 (1) Å30.44 × 0.29 × 0.20 mm
Z = 8
Data collection top
Bruker Kappa APEXII DUO CCD
diffractometer
9015 independent reflections
Radiation source: fine-focus sealed tube8276 reflections with I > 2σ(I)
Curved graphite crystal monochromatorRint = 0.017
Detector resolution: 16 pixels mm-1θmax = 36.5°, θmin = 2.0°
ϕ scans and ω scans with κ offseth = 3433
Absorption correction: numerical
(SADABS; Sheldrick, 2008a)
k = 2524
Tmin = 0.130, Tmax = 0.297l = 2024
38976 measured reflections
Refinement top
Refinement on F2Primary atom site location: structure-invariant direct methods
Least-squares matrix: fullSecondary atom site location: difference Fourier map
R[F2 > 2σ(F2)] = 0.015Hydrogen site location: inferred from neighbouring sites
wR(F2) = 0.035H-atom parameters constrained
S = 1.06 w = 1/[σ2(Fo2) + (0.0133P)2 + 5.9064P]
where P = (Fo2 + 2Fc2)/3
9015 reflections(Δ/σ)max = 0.002
226 parametersΔρmax = 0.78 e Å3
2 restraintsΔρmin = 1.01 e Å3
Crystal data top
[PtCl2(C13H21N5)]·0.5CH3NO2V = 3690.1 (1) Å3
Mr = 543.86Z = 8
Monoclinic, C2/cMo Kα radiation
a = 20.7561 (3) ŵ = 7.91 mm1
b = 15.1847 (3) ÅT = 100 K
c = 14.5191 (2) Å0.44 × 0.29 × 0.20 mm
β = 126.255 (1)°
Data collection top
Bruker Kappa APEXII DUO CCD
diffractometer
9015 independent reflections
Absorption correction: numerical
(SADABS; Sheldrick, 2008a)
8276 reflections with I > 2σ(I)
Tmin = 0.130, Tmax = 0.297Rint = 0.017
38976 measured reflections
Refinement top
R[F2 > 2σ(F2)] = 0.0152 restraints
wR(F2) = 0.035H-atom parameters constrained
S = 1.06Δρmax = 0.78 e Å3
9015 reflectionsΔρmin = 1.01 e Å3
226 parameters
Special details top

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.

Fractional atomic coordinates and isotropic or equivalent isotropic displacement parameters (Å2) top
xyzUiso*/UeqOcc. (<1)
Pt10.086711 (3)0.544103 (3)0.926821 (4)0.01177 (1)
Cl10.101415 (19)0.39718 (2)0.89820 (3)0.01527 (5)
Cl20.22139 (2)0.56194 (2)1.00525 (4)0.02319 (7)
N10.06341 (7)0.66831 (7)0.95151 (10)0.01384 (18)
N20.10725 (7)0.74645 (8)0.96392 (11)0.0178 (2)
N30.05540 (7)0.62871 (8)0.92740 (10)0.01448 (18)
H3N0.08050.64090.95710.022*
N40.15323 (7)0.52601 (8)0.81191 (10)0.01497 (19)
N50.02759 (7)0.51555 (8)0.84918 (10)0.01401 (18)
H5N0.04940.47620.79880.021*
C10.11579 (9)0.75208 (11)0.87141 (14)0.0222 (3)
H1A0.14480.70030.87340.033*
H1B0.14550.80550.88060.033*
H1C0.06280.75420.79800.033*
C20.18337 (9)0.75253 (11)1.07686 (14)0.0223 (3)
H2A0.17350.75961.13460.033*
H2B0.21340.80341.07930.033*
H2C0.21430.69871.09250.033*
C30.00349 (8)0.68722 (8)0.95483 (11)0.01326 (19)
C40.00996 (8)0.77467 (9)0.98743 (11)0.0143 (2)
C50.03328 (10)0.80236 (10)1.10020 (13)0.0214 (3)
H5A0.07570.76711.15910.026*
C60.01455 (10)0.88207 (11)1.12719 (14)0.0241 (3)
H60.04460.90051.20470.029*
C70.04716 (9)0.93496 (10)1.04312 (14)0.0204 (3)
C80.06930 (11)1.01952 (11)1.07194 (18)0.0287 (3)
H8A0.11821.01071.06650.043*
H8B0.07831.06561.01820.043*
H8C0.02581.03741.14990.043*
C90.09025 (9)0.90607 (10)0.93054 (14)0.0220 (3)
H90.13230.94160.87150.026*
C100.07310 (9)0.82650 (10)0.90270 (13)0.0196 (2)
H100.10450.80720.82550.023*
C110.07838 (8)0.55407 (8)0.86030 (11)0.01253 (19)
C120.17809 (9)0.43894 (9)0.76070 (13)0.0182 (2)
H12A0.20210.44310.67900.027*
H12B0.21740.41510.77090.027*
H12C0.13150.39990.79770.027*
C130.21699 (8)0.58213 (10)0.79291 (13)0.0197 (2)
H13A0.23210.56280.84210.030*
H13B0.26340.57810.71270.030*
H13C0.19840.64330.81110.030*
O10.23109 (19)0.25839 (19)0.8531 (2)0.0342 (6)0.50
N60.24020 (19)0.2509 (2)0.9450 (3)0.0313 (6)0.50
C140.1897 (11)0.1872 (12)0.958 (2)0.0371 (7)0.50
H14A0.13520.18610.88700.056*0.50
H14B0.18830.20621.02110.056*0.50
H14C0.21290.12800.97370.056*0.50
O20.1983 (8)0.1969 (8)0.9556 (13)0.0371 (7)0.50
Atomic displacement parameters (Å2) top
U11U22U33U12U13U23
Pt10.01165 (2)0.01170 (2)0.01451 (2)0.00007 (1)0.00913 (2)0.00061 (1)
Cl10.01681 (12)0.01324 (12)0.01993 (12)0.00183 (10)0.01316 (11)0.00001 (10)
Cl20.01519 (13)0.02011 (15)0.03501 (18)0.00179 (11)0.01526 (14)0.00348 (13)
N10.0138 (4)0.0127 (4)0.0187 (5)0.0007 (3)0.0116 (4)0.0007 (4)
N20.0186 (5)0.0140 (5)0.0267 (6)0.0036 (4)0.0167 (5)0.0011 (4)
N30.0164 (4)0.0130 (4)0.0197 (5)0.0019 (4)0.0138 (4)0.0030 (4)
N40.0124 (4)0.0142 (5)0.0196 (5)0.0008 (3)0.0102 (4)0.0019 (4)
N50.0132 (4)0.0136 (5)0.0165 (4)0.0017 (4)0.0095 (4)0.0027 (4)
C10.0186 (6)0.0260 (7)0.0252 (6)0.0016 (5)0.0146 (5)0.0058 (5)
C20.0220 (6)0.0211 (6)0.0266 (7)0.0084 (5)0.0159 (6)0.0085 (5)
C30.0149 (5)0.0120 (5)0.0158 (5)0.0003 (4)0.0106 (4)0.0001 (4)
C40.0155 (5)0.0120 (5)0.0192 (5)0.0003 (4)0.0124 (5)0.0009 (4)
C50.0278 (7)0.0177 (6)0.0187 (6)0.0067 (5)0.0137 (5)0.0000 (5)
C60.0300 (7)0.0202 (7)0.0243 (6)0.0044 (5)0.0172 (6)0.0040 (5)
C70.0229 (6)0.0132 (5)0.0346 (7)0.0003 (5)0.0222 (6)0.0019 (5)
C80.0349 (8)0.0158 (6)0.0492 (10)0.0023 (6)0.0326 (8)0.0035 (6)
C90.0180 (6)0.0179 (6)0.0303 (7)0.0045 (5)0.0144 (6)0.0018 (5)
C100.0165 (5)0.0180 (6)0.0226 (6)0.0025 (5)0.0107 (5)0.0013 (5)
C110.0133 (5)0.0117 (5)0.0146 (5)0.0000 (4)0.0094 (4)0.0005 (4)
C120.0175 (5)0.0166 (6)0.0221 (6)0.0038 (4)0.0126 (5)0.0042 (5)
C130.0138 (5)0.0198 (6)0.0246 (6)0.0040 (4)0.0107 (5)0.0023 (5)
O10.0462 (16)0.0301 (13)0.0322 (13)0.0129 (12)0.0263 (13)0.0062 (10)
N60.0300 (14)0.0254 (14)0.0396 (16)0.0101 (11)0.0211 (13)0.0053 (12)
C140.032 (3)0.028 (3)0.0494 (12)0.0033 (15)0.0232 (15)0.0019 (18)
O20.032 (3)0.028 (3)0.0494 (12)0.0033 (15)0.0232 (15)0.0019 (18)
Geometric parameters (Å, º) top
Pt1—N51.9809 (11)C4—C101.3941 (19)
Pt1—N12.0309 (11)C5—C61.396 (2)
Pt1—Cl12.3223 (3)C5—H5A0.9500
Pt1—Cl22.3279 (3)C6—C71.388 (2)
N1—C31.3049 (16)C6—H60.9500
N1—N21.4402 (16)C7—C91.391 (2)
N2—C11.4576 (19)C7—C81.504 (2)
N2—C21.459 (2)C8—H8A0.9800
N3—C31.3660 (17)C8—H8B0.9800
N3—C111.3826 (17)C8—H8C0.9800
N3—H3N0.8702C9—C101.386 (2)
N4—C111.3408 (17)C9—H90.9500
N4—C121.4537 (18)C10—H100.9500
N4—C131.4567 (18)C12—H12A0.9800
N5—C111.2966 (16)C12—H12B0.9800
N5—H5N0.8399C12—H12C0.9800
C1—H1A0.9800C13—H13A0.9800
C1—H1B0.9800C13—H13B0.9800
C1—H1C0.9800C13—H13C0.9800
C2—H2A0.9800O1—N61.237 (3)
C2—H2B0.9800N6—C141.518 (8)
C2—H2C0.9800C14—H14A0.9800
C3—C41.4904 (18)C14—H14B0.9800
C4—C51.3875 (19)C14—H14C0.9800
N5—Pt1—N188.49 (5)C10—C4—C3118.53 (12)
N5—Pt1—Cl185.86 (3)C4—C5—C6120.05 (14)
N1—Pt1—Cl1173.69 (3)C4—C5—H5A120.0
N5—Pt1—Cl2172.48 (3)C6—C5—H5A120.0
N1—Pt1—Cl298.51 (3)C7—C6—C5121.33 (14)
Cl1—Pt1—Cl287.274 (12)C7—C6—H6119.3
C3—N1—N2111.07 (11)C5—C6—H6119.3
C3—N1—Pt1122.86 (9)C6—C7—C9117.95 (13)
N2—N1—Pt1126.04 (8)C6—C7—C8121.61 (15)
N1—N2—C1110.19 (11)C9—C7—C8120.41 (15)
N1—N2—C2112.14 (11)C7—C8—H8A109.5
C1—N2—C2113.01 (11)C7—C8—H8B109.5
C3—N3—C11127.96 (11)H8A—C8—H8B109.5
C3—N3—H3N114.3C7—C8—H8C109.5
C11—N3—H3N117.7H8A—C8—H8C109.5
C11—N4—C12120.52 (11)H8B—C8—H8C109.5
C11—N4—C13123.69 (12)C10—C9—C7121.34 (14)
C12—N4—C13115.29 (11)C10—C9—H9119.3
C11—N5—Pt1128.23 (9)C7—C9—H9119.3
C11—N5—H5N111.7C9—C10—C4120.30 (14)
Pt1—N5—H5N119.9C9—C10—H10119.9
N2—C1—H1A109.5C4—C10—H10119.9
N2—C1—H1B109.5N5—C11—N4124.54 (12)
H1A—C1—H1B109.5N5—C11—N3119.36 (12)
N2—C1—H1C109.5N4—C11—N3116.09 (11)
H1A—C1—H1C109.5N4—C12—H12A109.5
H1B—C1—H1C109.5N4—C12—H12B109.5
N2—C2—H2A109.5H12A—C12—H12B109.5
N2—C2—H2B109.5N4—C12—H12C109.5
H2A—C2—H2B109.5H12A—C12—H12C109.5
N2—C2—H2C109.5H12B—C12—H12C109.5
H2A—C2—H2C109.5N4—C13—H13A109.5
H2B—C2—H2C109.5N4—C13—H13B109.5
N1—C3—N3123.64 (12)H13A—C13—H13B109.5
N1—C3—C4124.71 (12)N4—C13—H13C109.5
N3—C3—C4111.65 (11)H13A—C13—H13C109.5
C5—C4—C10118.99 (13)H13B—C13—H13C109.5
C5—C4—C3122.20 (12)O1—N6—C14121.0 (10)
N5—Pt1—N1—C324.61 (11)N3—C3—C4—C1070.06 (15)
Cl2—Pt1—N1—C3158.15 (10)C10—C4—C5—C61.5 (2)
N5—Pt1—N1—N2153.35 (11)C3—C4—C5—C6175.32 (14)
Cl2—Pt1—N1—N223.89 (11)C4—C5—C6—C70.2 (3)
C3—N1—N2—C1127.66 (12)C5—C6—C7—C90.2 (2)
Pt1—N1—N2—C150.50 (15)C5—C6—C7—C8178.10 (16)
C3—N1—N2—C2105.52 (13)C6—C7—C9—C100.8 (2)
Pt1—N1—N2—C276.31 (14)C8—C7—C9—C10177.14 (15)
N1—Pt1—N5—C1123.40 (12)C7—C9—C10—C42.2 (2)
Cl1—Pt1—N5—C11153.79 (12)C5—C4—C10—C92.5 (2)
N2—N1—C3—N3169.27 (12)C3—C4—C10—C9176.52 (13)
Pt1—N1—C3—N38.97 (18)Pt1—N5—C11—N4173.99 (10)
N2—N1—C3—C410.04 (18)Pt1—N5—C11—N35.04 (18)
Pt1—N1—C3—C4171.73 (9)C12—N4—C11—N512.4 (2)
C11—N3—C3—N122.1 (2)C13—N4—C11—N5159.13 (13)
C11—N3—C3—C4157.24 (12)C12—N4—C11—N3166.66 (12)
N1—C3—C4—C576.83 (18)C13—N4—C11—N321.81 (19)
N3—C3—C4—C5103.79 (15)C3—N3—C11—N524.5 (2)
N1—C3—C4—C10109.32 (16)C3—N3—C11—N4156.34 (13)
Hydrogen-bond geometry (Å, º) top
D—H···AD—HH···AD···AD—H···A
N3—H3N···Cl1i0.872.453.2154 (11)147
N5—H5N···Cl1ii0.842.673.4598 (12)157
Symmetry codes: (i) x, y+1, z+2; (ii) x, y, z+3/2.
Selected bond lengths (Å) top
Pt1—N51.9809 (11)Pt1—Cl12.3223 (3)
Pt1—N12.0309 (11)Pt1—Cl22.3279 (3)
Hydrogen-bond geometry (Å, º) top
D—H···AD—HH···AD···AD—H···A
N3—H3N···Cl1i0.872.453.2154 (11)146.6
N5—H5N···Cl1ii0.842.673.4598 (12)157.0
Symmetry codes: (i) x, y+1, z+2; (ii) x, y, z+3/2.
 

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