Literature DB >> 21588988

Tetra-methyl 1,1,2-triphenyl-2H-1λ-phosphole-2,3,4,5-tetra-carboxyl-ate.

Krzysztof K Krawczyk, Krystyna Wojtasiewicz, Jan K Maurin, Ewa Gronowska, Zbigniew Czarnocki.   

Abstract

The title compound, C(30)H(27)O(8)P (1), was formed as one of two products {(1) and (2) [Krawczyk et al. (2010 ▶). Acta Cryst. E66 (cv2753)]} in the reaction of dimethyl acetyl-enedicarboxyl-ate with triphenyl-phosphine. The mol-ecule of (1) consists of a five-membered ring, in which the P atom is incorporated. One of the phenyl groups of the triphenyl-phosphine migrated to a vicinal C atom during the reaction. The five-membered ring of (1) is corrugated [r.m.s. deviation = 0.0719 (8) Å], whereas that in compound (2) is planar, the r.m.s. deviation being only 0.009 (2) Å.

Entities:  

Year:  2010        PMID: 21588988      PMCID: PMC3008977          DOI: 10.1107/S1600536810037827

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


Related literature

For general background to derivatives of dimethyl­enesuccinic anhydride (fulgides), see: Hadjoudis & Mavridis (2004 ▶); Gordaliza et al. (1996 ▶); Datta et al. (2001 ▶); Stobbe (1893 ▶); Maercker (1965 ▶); Shaw et al. (1967 ▶). For a detailed study of adduct formation from triaryl­phosphines and acetyl­ene­dicarboxyl­ate, see: Waite et al. (1971 ▶). For related structures, see: Spek (1987 ▶); Thomas & Hamor (1993 ▶); Krawczyk et al. (2010 ▶).

Experimental

Crystal data

C30H27O8P M = 546.49 Triclinic, a = 10.445 (6) Å b = 10.897 (4) Å c = 13.778 (4) Å α = 73.93 (3)° β = 72.54 (4)° γ = 69.24 (4)° V = 1373.0 (10) Å3 Z = 2 Cu Kα radiation μ = 1.32 mm−1 T = 293 K 0.20 × 0.12 × 0.04 mm

Data collection

Oxford Diffraction Xcalibur diffractometer with Ruby CCD Absorption correction: analytical (CrysAlis RED; Oxford Diffraction, 2006 ▶) T min = 0.714, T max = 0.885 20877 measured reflections 5207 independent reflections 4503 reflections with I > 2σ(I) R int = 0.032

Refinement

R[F 2 > 2σ(F 2)] = 0.041 wR(F 2) = 0.128 S = 1.10 5207 reflections 352 parameters H-atom parameters not refined Δρmax = 0.33 e Å−3 Δρmin = −0.24 e Å−3 Data collection: CrysAlis CCD (Oxford Diffraction, 2006 ▶); cell refinement: CrysAlis RED (Oxford Diffraction, 2006 ▶); data reduction: CrysAlis RED; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008 ▶); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008 ▶); molecular graphics: SHELXTL-NT (Sheldrick, 2008 ▶); software used to prepare material for publication: SHELXL97. Crystal structure: contains datablocks paper, I. DOI: 10.1107/S1600536810037827/cv2752sup1.cif Structure factors: contains datablocks I. DOI: 10.1107/S1600536810037827/cv2752Isup2.hkl Additional supplementary materials: crystallographic information; 3D view; checkCIF report
C30H27O8PF(000) = 572
Mr = 546.49Dx = 1.322 Mg m3
Triclinic, P1Melting point: 527 K
a = 10.445 (6) ÅCu Kα radiation, λ = 1.54184 Å
b = 10.897 (4) ÅCell parameters from 13436 reflections
c = 13.778 (4) Åθ = 3.4–70.3°
α = 73.93 (3)°µ = 1.32 mm1
β = 72.54 (4)°T = 293 K
γ = 69.24 (4)°Parallelepiped, colourless
V = 1373.0 (10) Å30.20 × 0.12 × 0.04 mm
Z = 2
Oxford Diffraction Xcalibur diffractometer with Ruby CCD5207 independent reflections
Radiation source: Enhance (Cu) X-ray Source4503 reflections with I > 2σ(I)
graphiteRint = 0.032
Detector resolution: 10.4922 pixels mm-1θmax = 70.9°, θmin = 3.4°
ο and φ scansh = −12→12
Absorption correction: analytical (CrysAlis RED; Oxford Diffraction, 2006)k = −13→13
Tmin = 0.714, Tmax = 0.885l = −16→16
20877 measured 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)] = 0.041Hydrogen site location: inferred from neighbouring sites
wR(F2) = 0.128H-atom parameters not refined
S = 1.10w = 1/[σ2(Fo2) + (0.0892P)2 + 0.105P] where P = (Fo2 + 2Fc2)/3
5207 reflections(Δ/σ)max = 0.001
352 parametersΔρmax = 0.33 e Å3
0 restraintsΔρmin = −0.24 e Å3
Experimental. Analytical numeric absorption correction using a multifaceted crystal model based on expressions derived by R.C. Clark & J.S. Reid. (Clark, R. C. & Reid, J. S. (1995). Acta Cryst. A51, 887–897)
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.
xyzUiso*/Ueq
P10.87807 (4)0.28700 (3)0.28773 (3)0.03454 (13)
O10.74905 (14)0.07868 (13)0.47544 (10)0.0626 (4)
O20.56979 (14)0.26500 (16)0.47158 (9)0.0707 (4)
O30.38795 (12)0.44323 (14)0.23622 (10)0.0600 (3)
O40.45565 (13)0.23001 (13)0.31754 (11)0.0608 (3)
O50.52801 (15)0.67511 (12)0.19216 (10)0.0620 (4)
O60.58094 (12)0.56597 (11)0.06301 (8)0.0463 (3)
O70.85225 (13)0.62633 (11)0.08444 (10)0.0549 (3)
O81.01365 (12)0.49540 (11)0.17693 (9)0.0489 (3)
C10.72232 (15)0.22390 (14)0.31095 (11)0.0364 (3)
C20.61807 (15)0.34781 (15)0.26462 (11)0.0383 (3)
C30.67344 (15)0.44912 (14)0.20778 (11)0.0368 (3)
C40.81626 (15)0.43265 (14)0.20266 (11)0.0381 (3)
C50.68130 (17)0.17803 (17)0.42808 (12)0.0458 (4)
C60.5292 (3)0.2358 (4)0.58405 (17)0.1184 (13)
H6A0.44660.30480.60760.178*
H6B0.60440.23190.61230.178*
H6C0.50970.15130.60650.178*
C70.47704 (16)0.34920 (17)0.26968 (12)0.0439 (4)
C80.3211 (2)0.2186 (3)0.3245 (2)0.0829 (7)
H8A0.31710.13040.35990.124*
H8B0.30630.23460.25600.124*
H8C0.24950.28330.36210.124*
C90.58512 (16)0.57734 (15)0.15500 (12)0.0413 (3)
C100.4878 (2)0.6777 (2)0.00915 (16)0.0659 (5)
H10A0.49260.6597−0.05640.099*
H10B0.51550.7566−0.00210.099*
H10C0.39340.69140.05000.099*
C110.89050 (16)0.52834 (14)0.14811 (11)0.0398 (3)
C121.1076 (2)0.5725 (2)0.11739 (17)0.0631 (5)
H12A1.19090.54100.14420.095*
H12B1.06220.66500.12190.095*
H12C1.13260.56320.04630.095*
C130.76060 (16)0.11180 (15)0.24985 (12)0.0417 (3)
C140.79602 (19)0.14481 (18)0.14288 (14)0.0520 (4)
H140.79910.23130.11120.062*
C150.8269 (2)0.0515 (2)0.08212 (17)0.0666 (5)
H150.85170.07510.01030.080*
C160.8210 (3)−0.0755 (2)0.1277 (2)0.0758 (6)
H160.8411−0.13820.08700.091*
C170.7855 (3)−0.1097 (2)0.2332 (2)0.0795 (7)
H170.7814−0.19610.26410.095*
C180.7554 (2)−0.01671 (18)0.29509 (17)0.0617 (5)
H180.7319−0.04130.36690.074*
C191.03797 (15)0.16713 (15)0.24022 (12)0.0386 (3)
C201.07591 (19)0.03839 (16)0.29863 (14)0.0514 (4)
H201.01970.01520.36300.062*
C211.1982 (2)−0.05435 (18)0.25964 (19)0.0651 (5)
H211.2241−0.14040.29810.078*
C221.2813 (2)−0.0205 (2)0.16489 (19)0.0674 (5)
H221.3643−0.08300.14010.081*
C231.24248 (19)0.1049 (2)0.10654 (15)0.0586 (5)
H231.29880.12680.04180.070*
C241.11999 (17)0.19945 (16)0.14305 (12)0.0452 (4)
H241.09310.28400.10260.054*
C250.88459 (16)0.32367 (15)0.40546 (12)0.0422 (3)
C260.97926 (18)0.24694 (18)0.46578 (13)0.0492 (4)
H261.04610.16930.44690.059*
C270.9748 (2)0.2854 (2)0.55454 (15)0.0661 (5)
H271.04020.23430.59440.079*
C280.8755 (3)0.3978 (3)0.58435 (17)0.0789 (6)
H280.87290.42270.64440.095*
C290.7807 (3)0.4726 (3)0.5259 (2)0.0965 (9)
H290.71220.54840.54670.116*
C300.7848 (3)0.4378 (2)0.43626 (18)0.0789 (7)
H300.72030.49100.39610.095*
U11U22U33U12U13U23
P10.0331 (2)0.0310 (2)0.0361 (2)−0.00411 (15)−0.01189 (14)−0.00373 (14)
O10.0660 (8)0.0580 (8)0.0472 (7)−0.0097 (7)−0.0169 (6)0.0087 (6)
O20.0576 (8)0.0871 (10)0.0400 (6)0.0074 (7)−0.0074 (6)−0.0113 (6)
O30.0386 (6)0.0697 (8)0.0637 (8)−0.0056 (6)−0.0192 (5)−0.0055 (6)
O40.0423 (6)0.0612 (8)0.0795 (9)−0.0201 (6)−0.0157 (6)−0.0060 (6)
O50.0722 (8)0.0435 (6)0.0633 (7)0.0130 (6)−0.0303 (6)−0.0223 (6)
O60.0543 (6)0.0410 (6)0.0410 (6)−0.0028 (5)−0.0215 (5)−0.0068 (4)
O70.0622 (7)0.0400 (6)0.0618 (7)−0.0175 (6)−0.0285 (6)0.0100 (5)
O80.0456 (6)0.0440 (6)0.0573 (7)−0.0155 (5)−0.0196 (5)0.0015 (5)
C10.0332 (7)0.0361 (7)0.0372 (7)−0.0083 (6)−0.0099 (5)−0.0031 (6)
C20.0346 (7)0.0391 (7)0.0380 (7)−0.0039 (6)−0.0117 (6)−0.0077 (6)
C30.0379 (7)0.0347 (7)0.0356 (7)−0.0014 (6)−0.0139 (6)−0.0093 (6)
C40.0395 (7)0.0309 (7)0.0404 (7)−0.0051 (6)−0.0144 (6)−0.0026 (5)
C50.0428 (8)0.0503 (9)0.0406 (8)−0.0146 (7)−0.0097 (6)−0.0017 (7)
C60.0901 (19)0.162 (3)0.0423 (11)0.0193 (19)−0.0018 (11)−0.0134 (15)
C70.0366 (7)0.0540 (9)0.0395 (7)−0.0072 (7)−0.0096 (6)−0.0133 (7)
C80.0564 (12)0.0940 (17)0.1114 (19)−0.0385 (12)−0.0180 (12)−0.0192 (15)
C90.0412 (8)0.0369 (7)0.0422 (8)−0.0004 (6)−0.0156 (6)−0.0099 (6)
C100.0837 (14)0.0527 (10)0.0630 (11)−0.0071 (10)−0.0465 (11)0.0017 (9)
C110.0455 (8)0.0315 (7)0.0417 (7)−0.0076 (6)−0.0149 (6)−0.0054 (6)
C120.0531 (10)0.0639 (11)0.0758 (13)−0.0278 (9)−0.0145 (9)−0.0047 (10)
C130.0370 (7)0.0365 (7)0.0516 (8)−0.0076 (6)−0.0147 (6)−0.0077 (6)
C140.0590 (10)0.0472 (9)0.0503 (9)−0.0108 (8)−0.0158 (8)−0.0129 (7)
C150.0774 (13)0.0631 (12)0.0621 (11)−0.0089 (10)−0.0212 (10)−0.0260 (9)
C160.0861 (15)0.0580 (12)0.0943 (17)−0.0055 (11)−0.0352 (13)−0.0363 (12)
C170.0990 (17)0.0417 (10)0.1046 (19)−0.0212 (11)−0.0300 (14)−0.0160 (11)
C180.0737 (12)0.0437 (9)0.0665 (11)−0.0186 (9)−0.0187 (10)−0.0042 (8)
C190.0345 (7)0.0354 (7)0.0441 (7)−0.0036 (6)−0.0146 (6)−0.0075 (6)
C200.0491 (9)0.0397 (8)0.0572 (10)−0.0055 (7)−0.0166 (8)−0.0014 (7)
C210.0596 (11)0.0380 (9)0.0876 (14)0.0051 (8)−0.0289 (11)−0.0087 (9)
C220.0480 (10)0.0590 (11)0.0890 (15)0.0070 (9)−0.0155 (10)−0.0343 (11)
C230.0475 (9)0.0654 (11)0.0585 (10)−0.0068 (8)−0.0037 (8)−0.0272 (9)
C240.0459 (8)0.0445 (8)0.0433 (8)−0.0083 (7)−0.0120 (7)−0.0099 (7)
C250.0444 (8)0.0421 (8)0.0414 (7)−0.0109 (7)−0.0132 (6)−0.0085 (6)
C260.0490 (9)0.0516 (9)0.0455 (8)−0.0133 (8)−0.0167 (7)−0.0026 (7)
C270.0751 (13)0.0788 (14)0.0506 (10)−0.0234 (11)−0.0307 (9)−0.0029 (9)
C280.1066 (18)0.0837 (15)0.0560 (11)−0.0224 (14)−0.0288 (12)−0.0244 (11)
C290.116 (2)0.0873 (17)0.0825 (16)0.0170 (16)−0.0434 (15)−0.0498 (14)
C300.0877 (15)0.0693 (13)0.0761 (14)0.0194 (12)−0.0430 (12)−0.0377 (11)
P1—C41.7342 (17)C12—H12C0.9600
P1—C191.7872 (19)C13—C181.379 (2)
P1—C251.8001 (16)C13—C141.383 (2)
P1—C11.8921 (17)C14—C151.384 (3)
O1—C51.201 (2)C14—H140.9300
O2—C51.314 (2)C15—C161.367 (3)
O2—C61.453 (3)C15—H150.9300
O3—C71.204 (2)C16—C171.365 (4)
O4—C71.347 (2)C16—H160.9300
O4—C81.426 (2)C17—C181.395 (3)
O5—C91.192 (2)C17—H170.9300
O6—C91.3220 (19)C18—H180.9300
O6—C101.440 (2)C19—C241.384 (2)
O7—C111.2078 (19)C19—C201.395 (2)
O8—C111.357 (2)C20—C211.384 (3)
O8—C121.436 (2)C20—H200.9300
C1—C21.521 (2)C21—C221.369 (3)
C1—C51.526 (2)C21—H210.9300
C1—C131.543 (2)C22—C231.369 (3)
C2—C31.367 (2)C22—H220.9300
C2—C71.448 (2)C23—C241.385 (3)
C3—C41.420 (2)C23—H230.9300
C3—C91.503 (2)C24—H240.9300
C4—C111.429 (2)C25—C261.375 (2)
C6—H6A0.9600C25—C301.386 (3)
C6—H6B0.9600C26—C271.382 (3)
C6—H6C0.9600C26—H260.9300
C8—H8A0.9600C27—C281.366 (3)
C8—H8B0.9600C27—H270.9300
C8—H8C0.9600C28—C291.355 (4)
C10—H10A0.9600C28—H280.9300
C10—H10B0.9600C29—C301.374 (3)
C10—H10C0.9600C29—H290.9300
C12—H12A0.9600C30—H300.9300
C12—H12B0.9600
C4—P1—C19118.31 (8)O8—C12—H12C109.5
C4—P1—C25111.01 (8)H12A—C12—H12C109.5
C19—P1—C25110.45 (8)H12B—C12—H12C109.5
C4—P1—C195.25 (8)C18—C13—C14118.39 (16)
C19—P1—C1110.67 (8)C18—C13—C1124.08 (16)
C25—P1—C1110.13 (8)C14—C13—C1117.46 (14)
C5—O2—C6116.29 (17)C13—C14—C15121.17 (18)
C7—O4—C8116.36 (17)C13—C14—H14119.4
C9—O6—C10115.99 (13)C15—C14—H14119.4
C11—O8—C12116.43 (14)C16—C15—C14120.0 (2)
C2—C1—C5115.65 (13)C16—C15—H15120.0
C2—C1—C13109.52 (12)C14—C15—H15120.0
C5—C1—C13113.31 (13)C17—C16—C15119.67 (19)
C2—C1—P1101.49 (10)C17—C16—H16120.2
C5—C1—P1105.46 (10)C15—C16—H16120.2
C13—C1—P1110.62 (10)C16—C17—C18120.8 (2)
C3—C2—C7123.29 (14)C16—C17—H17119.6
C3—C2—C1114.70 (13)C18—C17—H17119.6
C7—C2—C1121.52 (14)C13—C18—C17120.0 (2)
C2—C3—C4118.33 (14)C13—C18—H18120.0
C2—C3—C9121.37 (14)C17—C18—H18120.0
C4—C3—C9120.26 (14)C24—C19—C20119.92 (15)
C3—C4—C11125.85 (14)C24—C19—P1120.09 (12)
C3—C4—P1108.19 (12)C20—C19—P1119.89 (13)
C11—C4—P1125.44 (12)C21—C20—C19119.24 (18)
O1—C5—O2124.05 (16)C21—C20—H20120.4
O1—C5—C1123.65 (15)C19—C20—H20120.4
O2—C5—C1112.10 (14)C22—C21—C20120.56 (18)
O2—C6—H6A109.5C22—C21—H21119.7
O2—C6—H6B109.5C20—C21—H21119.7
H6A—C6—H6B109.5C23—C22—C21120.22 (17)
O2—C6—H6C109.5C23—C22—H22119.9
H6A—C6—H6C109.5C21—C22—H22119.9
H6B—C6—H6C109.5C22—C23—C24120.53 (18)
O3—C7—O4122.88 (15)C22—C23—H23119.7
O3—C7—C2125.66 (17)C24—C23—H23119.7
O4—C7—C2111.46 (14)C23—C24—C19119.47 (16)
O4—C8—H8A109.5C23—C24—H24120.3
O4—C8—H8B109.5C19—C24—H24120.3
H8A—C8—H8B109.5C26—C25—C30118.85 (16)
O4—C8—H8C109.5C26—C25—P1124.91 (13)
H8A—C8—H8C109.5C30—C25—P1116.24 (13)
H8B—C8—H8C109.5C25—C26—C27119.85 (18)
O5—C9—O6125.55 (14)C25—C26—H26120.1
O5—C9—C3123.73 (14)C27—C26—H26120.1
O6—C9—C3110.72 (12)C28—C27—C26120.73 (19)
O6—C10—H10A109.5C28—C27—H27119.6
O6—C10—H10B109.5C26—C27—H27119.6
H10A—C10—H10B109.5C29—C28—C27119.59 (19)
O6—C10—H10C109.5C29—C28—H28120.2
H10A—C10—H10C109.5C27—C28—H28120.2
H10B—C10—H10C109.5C28—C29—C30120.7 (2)
O7—C11—O8122.87 (14)C28—C29—H29119.6
O7—C11—C4126.20 (15)C30—C29—H29119.6
O8—C11—C4110.93 (13)C29—C30—C25120.2 (2)
O8—C12—H12A109.5C29—C30—H30119.9
O8—C12—H12B109.5C25—C30—H30119.9
H12A—C12—H12B109.5
C4—P1—C1—C2−12.94 (10)C12—O8—C11—O7−8.6 (2)
C19—P1—C1—C2−135.88 (10)C12—O8—C11—C4171.39 (14)
C25—P1—C1—C2101.72 (11)C3—C4—C11—O7−13.6 (3)
C4—P1—C1—C5−133.91 (11)P1—C4—C11—O7175.67 (13)
C19—P1—C1—C5103.16 (11)C3—C4—C11—O8166.45 (13)
C25—P1—C1—C5−19.25 (12)P1—C4—C11—O8−4.29 (19)
C4—P1—C1—C13103.22 (11)C2—C1—C13—C18−129.20 (17)
C19—P1—C1—C13−19.72 (12)C5—C1—C13—C181.6 (2)
C25—P1—C1—C13−142.12 (11)P1—C1—C13—C18119.74 (16)
C5—C1—C2—C3124.77 (14)C2—C1—C13—C1447.76 (18)
C13—C1—C2—C3−105.73 (14)C5—C1—C13—C14178.51 (14)
P1—C1—C2—C311.24 (14)P1—C1—C13—C14−63.30 (17)
C5—C1—C2—C7−63.05 (18)C18—C13—C14—C15−0.6 (3)
C13—C1—C2—C766.44 (17)C1—C13—C14—C15−177.72 (17)
P1—C1—C2—C7−176.59 (11)C13—C14—C15—C160.8 (3)
C7—C2—C3—C4−175.57 (13)C14—C15—C16—C17−0.5 (4)
C1—C2—C3—C4−3.56 (19)C15—C16—C17—C18−0.1 (4)
C7—C2—C3—C96.7 (2)C14—C13—C18—C170.0 (3)
C1—C2—C3—C9178.76 (12)C1—C13—C18—C17176.93 (18)
C2—C3—C4—C11−179.26 (14)C16—C17—C18—C130.4 (4)
C9—C3—C4—C11−1.5 (2)C4—P1—C19—C249.56 (15)
C2—C3—C4—P1−7.20 (16)C25—P1—C19—C24−119.90 (13)
C9—C3—C4—P1170.51 (10)C1—P1—C19—C24117.88 (13)
C19—P1—C4—C3128.76 (11)C4—P1—C19—C20−166.72 (12)
C25—P1—C4—C3−102.04 (12)C25—P1—C19—C2063.82 (15)
C1—P1—C4—C311.88 (11)C1—P1—C19—C20−58.40 (15)
C19—P1—C4—C11−59.14 (15)C24—C19—C20—C212.1 (3)
C25—P1—C4—C1170.06 (15)P1—C19—C20—C21178.33 (14)
C1—P1—C4—C11−176.01 (13)C19—C20—C21—C220.0 (3)
C6—O2—C5—O10.0 (3)C20—C21—C22—C23−1.5 (3)
C6—O2—C5—C1−175.0 (2)C21—C22—C23—C240.9 (3)
C2—C1—C5—O1176.41 (15)C22—C23—C24—C191.2 (3)
C13—C1—C5—O148.8 (2)C20—C19—C24—C23−2.7 (2)
P1—C1—C5—O1−72.36 (19)P1—C19—C24—C23−178.96 (13)
C2—C1—C5—O2−8.5 (2)C4—P1—C25—C26−149.65 (14)
C13—C1—C5—O2−136.16 (15)C19—P1—C25—C26−16.38 (17)
P1—C1—C5—O2102.70 (15)C1—P1—C25—C26106.15 (16)
C8—O4—C7—O31.7 (3)C4—P1—C25—C3030.89 (19)
C8—O4—C7—C2−178.33 (17)C19—P1—C25—C30164.16 (17)
C3—C2—C7—O3−9.5 (2)C1—P1—C25—C30−73.31 (19)
C1—C2—C7—O3179.04 (15)C30—C25—C26—C27−0.9 (3)
C3—C2—C7—O4170.58 (14)P1—C25—C26—C27179.64 (15)
C1—C2—C7—O4−0.9 (2)C25—C26—C27—C281.3 (3)
C10—O6—C9—O5−6.5 (3)C26—C27—C28—C29−0.3 (4)
C10—O6—C9—C3173.85 (15)C27—C28—C29—C30−0.9 (5)
C2—C3—C9—O594.9 (2)C28—C29—C30—C251.3 (5)
C4—C3—C9—O5−82.8 (2)C26—C25—C30—C29−0.4 (4)
C2—C3—C9—O6−85.44 (17)P1—C25—C30—C29179.1 (2)
C4—C3—C9—O696.92 (17)
  4 in total

Review 1.  Photochromism and thermochromism of Schiff bases in the solid state: structural aspects.

Authors:  Eugene Hadjoudis; Irene M Mavridis
Journal:  Chem Soc Rev       Date:  2004-11-04       Impact factor: 54.564

2.  A short history of SHELX.

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

3.  Acid-catalyzed cyclization of 2,3-dibenzylidenesuccinates: synthesis of lignans (+/-)-cagayanin and (+/-)-galbulin.

Authors:  P K Datta; C Yau; T S Hooper; B L Yvon; J L Charlton
Journal:  J Org Chem       Date:  2001-12-14       Impact factor: 4.354

4.  Trimethyl-3-meth-oxy-4-oxo-5-triphenyl-phospho-ranyl-idene-cyclo-pent-1-ene-1,2,3-tricarboxyl-ate.

Authors:  Krzysztof K Krawczyk; Krystyna Wojtasiewicz; Jan K Maurin; Ewa Gronowska; Zbigniew Czarnocki
Journal:  Acta Crystallogr Sect E Struct Rep Online       Date:  2010-10-09
  4 in total
  1 in total

1.  Trimethyl-3-meth-oxy-4-oxo-5-triphenyl-phospho-ranyl-idene-cyclo-pent-1-ene-1,2,3-tricarboxyl-ate.

Authors:  Krzysztof K Krawczyk; Krystyna Wojtasiewicz; Jan K Maurin; Ewa Gronowska; Zbigniew Czarnocki
Journal:  Acta Crystallogr Sect E Struct Rep Online       Date:  2010-10-09
  1 in total

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