Literature DB >> 22058728

6-Benzyl-2-[(triphenyl-λ-phosphanyl-idene)amino]-4,5,6,7-tetra-hydro-thieno[2,3-c]pyridine-3-carbonitrile.

Hong Chen, Kai Yan.   

Abstract

In the title compound, C(33)H(28)N(3)PS, the P atom has a distorted tetra-hedral PNC(3) environment, formed by the N atom and three aryl rings. No inter-molecular hydrogen-bonding inter-actions or π-π stacking inter-actions are present in the crystal structure.

Entities:  

Year:  2011        PMID: 22058728      PMCID: PMC3201343          DOI: 10.1107/S1600536811035082

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


Related literature

For general background to the potential use of imino­phospho­ranes in the synthesis of N-heterocyclic compounds by means of an aza-Wittig reaction, see: Bräse et al. (2005 ▶); Ding et al. (2005 ▶); Huang et al. (2009a ▶,b ▶); Liu et al. (2008 ▶); Palacios et al. (2007 ▶). For a related structure, see: Muller (2011 ▶).

Experimental

Crystal data

pan class="Chemical">C33H28N3PS M = 529.61 Monoclinic, a = 8.926 (4) Å b = 27.537 (12) Å c = 11.719 (5) Å β = 101.970 (4)° V = 2818 (2) Å3 Z = 4 Mo Kα radiation μ = 0.20 mm−1 T = 296 K 0.23 × 0.15 × 0.14 mm

Data collection

Bruker SMART CCD diffractometer Absorption correction: multi-scan (SADABS; Sheldrick, 1996 ▶) T min = 0.965, T max = 0.973 25582 measured reflections 6415 independent reflections 5506 reflections with I > 2σ(I) R int = 0.078

Refinement

R[F 2 > 2σ(F 2)] = 0.054 wR(F 2) = 0.145 S = 1.09 6415 reflections 343 parameters 14 restraints H-atom parameters constrained Δρmax = 0.35 e Å−3 Δρmin = −0.40 e Å−3 Data collection: SMART (Bruker, 1997 ▶); cell refinement: SAINT (Bruker, 1997 ▶); data reduction: SAINT; program(s) used to solve structure: SHELXTL (Sheldrick, 2008 ▶); program(s) used to refine structure: SHELXTL; molecular graphics: SHELXTL; software used to prepare material for publication: SHELXTL. Crystal structure: contains datablock(s) I, global. DOI: 10.1107/S1600536811035082/aa2019sup1.cif Structure factors: contains datablock(s) I. DOI: 10.1107/S1600536811035082/aa2019Isup2.hkl Supplementary material file. DOI: 10.1107/S1600536811035082/aa2019Isup3.cml Additional supplementary materials: crystallographic information; 3D view; checkCIF report
C33H28N3PSF(000) = 1112
Mr = 529.61Dx = 1.248 Mg m3
Monoclinic, P21/cMelting point: 463 K
Hall symbol: -P 2ybcMo Kα radiation, λ = 0.71073 Å
a = 8.926 (4) ÅCell parameters from 6648 reflections
b = 27.537 (12) Åθ = 2.7–27.5°
c = 11.719 (5) ŵ = 0.20 mm1
β = 101.970 (4)°T = 296 K
V = 2818 (2) Å3Block, yellow
Z = 40.23 × 0.15 × 0.14 mm
Bruker SMART CCD diffractometer6415 independent reflections
Radiation source: fine-focus sealed tube5506 reflections with I > 2σ(I)
graphiteRint = 0.078
CCD Profile fitting scansθmax = 27.5°, θmin = 2.7°
Absorption correction: multi-scan (SADABS; Sheldrick, 1996)h = −11→11
Tmin = 0.965, Tmax = 0.973k = −35→35
25582 measured reflectionsl = −15→15
Refinement on F2Primary atom site location: structure-invariant direct methods
Least-squares matrix: fullSecondary atom site location: difference Fourier map
R[F2 > 2σ(F2)] = 0.054Hydrogen site location: inferred from neighbouring sites
wR(F2) = 0.145H-atom parameters constrained
S = 1.09w = 1/[σ2(Fo2) + (0.0593P)2 + 0.6222P] where P = (Fo2 + 2Fc2)/3
6415 reflections(Δ/σ)max = 0.001
343 parametersΔρmax = 0.35 e Å3
14 restraintsΔρmin = −0.40 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.
xyzUiso*/Ueq
S10.39018 (6)0.490734 (17)0.21538 (4)0.04728 (14)
P110.32811 (5)0.375360 (16)0.10480 (4)0.03695 (13)
C20.29442 (19)0.44156 (6)0.26335 (15)0.0385 (4)
N100.26996 (18)0.39751 (5)0.21202 (13)0.0430 (3)
C240.2666 (2)0.31289 (7)0.10029 (15)0.0423 (4)
C30.2455 (2)0.45503 (7)0.36345 (15)0.0409 (4)
C180.2416 (2)0.40262 (7)−0.03330 (16)0.0433 (4)
C90.2855 (2)0.50376 (7)0.40134 (15)0.0431 (4)
C40.2442 (3)0.52902 (8)0.50410 (17)0.0533 (5)
H4A0.28220.51030.57420.064*
H4B0.13360.53100.49320.064*
C120.5327 (2)0.37745 (7)0.11612 (16)0.0431 (4)
C80.3613 (2)0.52716 (7)0.32988 (17)0.0467 (4)
C300.1641 (2)0.42171 (7)0.42103 (16)0.0482 (4)
C190.1165 (2)0.43269 (8)−0.03768 (18)0.0526 (5)
H190.08190.43950.03020.063*
N60.3003 (2)0.60358 (7)0.40430 (17)0.0624 (5)
C70.4035 (3)0.57978 (8)0.3403 (2)0.0613 (6)
H7A0.50890.58350.38180.074*
H7B0.39320.59410.26350.074*
C290.1868 (3)0.29638 (8)0.18196 (19)0.0559 (5)
H290.17030.31710.24090.067*
N310.0979 (3)0.39483 (8)0.46615 (18)0.0729 (6)
C130.6239 (2)0.34442 (9)0.18892 (19)0.0573 (5)
H130.57890.31900.22210.069*
C50.3120 (3)0.58015 (9)0.5189 (2)0.0666 (6)
H5A0.25750.59940.56650.080*
H5B0.41870.57840.55860.080*
C330.3007 (3)0.67981 (8)0.2956 (2)0.0681 (6)
C270.1534 (3)0.21872 (9)0.0894 (3)0.0765 (8)
H270.11400.18740.08490.092*
C230.2916 (3)0.39258 (10)−0.13584 (18)0.0643 (6)
H230.37610.3726−0.13410.077*
C250.2919 (3)0.28159 (8)0.0134 (2)0.0628 (6)
H250.34710.2920−0.04130.075*
C260.2338 (4)0.23443 (9)0.0087 (2)0.0775 (8)
H260.24990.2134−0.04980.093*
C170.6018 (3)0.41492 (9)0.0675 (2)0.0630 (6)
H170.54200.43720.01840.076*
C160.7602 (3)0.41936 (11)0.0916 (3)0.0805 (8)
H160.80630.44460.05870.097*
C360.2460 (5)0.72224 (11)0.0748 (3)0.0943 (9)
H360.22820.73640.00120.113*
C150.8486 (3)0.38665 (12)0.1639 (3)0.0797 (8)
H150.95460.38980.18030.096*
C140.7818 (3)0.34928 (11)0.2122 (2)0.0748 (7)
H140.84270.32710.26070.090*
C280.1311 (3)0.24919 (9)0.1766 (3)0.0753 (7)
H280.07860.23830.23240.090*
C220.2153 (3)0.41234 (12)−0.2402 (2)0.0827 (9)
H220.24800.4053−0.30870.099*
C200.0417 (3)0.45287 (10)−0.1435 (2)0.0723 (7)
H20−0.04160.4734−0.14620.087*
C210.0922 (3)0.44216 (12)−0.2433 (2)0.0802 (8)
H210.04200.4553−0.31400.096*
C350.3784 (4)0.72998 (12)0.1508 (4)0.0936 (10)
H350.45200.74990.12920.112*
C320.3298 (4)0.65581 (9)0.4136 (3)0.0824 (8)
H32A0.43530.66130.45260.099*
H32B0.26430.67040.46070.099*
C380.1630 (3)0.67270 (10)0.2154 (3)0.0808 (8)
H380.08670.65360.23580.097*
C340.4080 (3)0.70931 (11)0.2599 (3)0.0888 (9)
H340.50130.71520.31030.107*
C370.1393 (4)0.69361 (12)0.1064 (3)0.0931 (10)
H370.04780.68790.05370.112*
U11U22U33U12U13U23
S10.0532 (3)0.0445 (3)0.0489 (3)−0.00073 (19)0.0216 (2)−0.00419 (18)
P110.0375 (2)0.0411 (2)0.0327 (2)0.00167 (17)0.00837 (17)−0.00069 (16)
C20.0377 (8)0.0432 (9)0.0346 (8)0.0036 (7)0.0076 (7)0.0006 (6)
N100.0485 (8)0.0442 (8)0.0386 (8)−0.0012 (6)0.0143 (7)−0.0042 (6)
C240.0422 (9)0.0443 (9)0.0374 (9)0.0003 (7)0.0014 (7)−0.0019 (7)
C30.0432 (9)0.0476 (9)0.0314 (8)0.0064 (7)0.0065 (7)0.0001 (7)
C180.0415 (9)0.0501 (10)0.0376 (9)−0.0001 (7)0.0070 (7)0.0037 (7)
C90.0423 (9)0.0505 (10)0.0348 (9)0.0091 (8)0.0040 (7)−0.0045 (7)
C40.0608 (12)0.0609 (12)0.0356 (9)0.0127 (9)0.0040 (9)−0.0081 (8)
C120.0400 (9)0.0491 (10)0.0406 (9)0.0035 (7)0.0094 (7)−0.0051 (7)
C80.0450 (9)0.0462 (9)0.0492 (10)0.0052 (8)0.0104 (8)−0.0090 (8)
C300.0582 (11)0.0536 (10)0.0339 (9)0.0080 (9)0.0119 (8)0.0017 (7)
C190.0443 (10)0.0608 (12)0.0512 (11)0.0049 (9)0.0064 (9)0.0052 (9)
N60.0780 (13)0.0471 (9)0.0629 (11)0.0041 (9)0.0170 (10)−0.0168 (8)
C70.0602 (12)0.0494 (11)0.0773 (15)−0.0018 (10)0.0213 (11)−0.0146 (10)
C290.0691 (13)0.0484 (11)0.0515 (11)−0.0074 (9)0.0158 (10)0.0022 (8)
N310.0974 (16)0.0704 (13)0.0583 (12)−0.0061 (11)0.0330 (12)0.0098 (9)
C130.0485 (11)0.0683 (13)0.0529 (12)0.0064 (10)0.0056 (9)0.0076 (10)
C50.0779 (15)0.0678 (14)0.0499 (12)0.0049 (12)0.0036 (11)−0.0212 (10)
C330.0764 (15)0.0455 (11)0.0805 (16)0.0092 (10)0.0119 (13)−0.0187 (10)
C270.0892 (18)0.0464 (12)0.0819 (18)−0.0119 (12)−0.0100 (15)0.0005 (11)
C230.0621 (13)0.0937 (17)0.0391 (11)0.0135 (12)0.0152 (10)0.0084 (10)
C250.0818 (15)0.0564 (12)0.0504 (12)0.0022 (11)0.0143 (11)−0.0109 (9)
C260.103 (2)0.0541 (13)0.0662 (16)0.0051 (13)−0.0043 (14)−0.0223 (11)
C170.0470 (11)0.0652 (13)0.0806 (16)0.0025 (10)0.0220 (11)0.0123 (11)
C160.0498 (13)0.0850 (18)0.112 (2)−0.0080 (12)0.0288 (14)0.0093 (16)
C360.119 (3)0.0695 (18)0.095 (2)0.0008 (18)0.025 (2)−0.0063 (15)
C150.0403 (11)0.114 (2)0.0847 (19)−0.0037 (13)0.0122 (12)−0.0092 (16)
C140.0482 (12)0.105 (2)0.0668 (16)0.0173 (13)0.0017 (11)0.0068 (14)
C280.0913 (18)0.0535 (13)0.0814 (17)−0.0172 (12)0.0187 (14)0.0079 (12)
C220.0768 (17)0.132 (3)0.0392 (12)−0.0004 (17)0.0118 (12)0.0154 (13)
C200.0526 (12)0.0819 (16)0.0743 (17)0.0134 (12)−0.0057 (12)0.0194 (13)
C210.0652 (15)0.113 (2)0.0549 (15)−0.0024 (15)−0.0054 (12)0.0301 (14)
C350.105 (2)0.0723 (18)0.115 (3)−0.0176 (17)0.048 (2)−0.0176 (17)
C320.1019 (19)0.0533 (13)0.0851 (17)0.0030 (13)0.0036 (15)−0.0268 (11)
C380.0603 (14)0.0636 (15)0.116 (2)−0.0038 (12)0.0126 (15)0.0062 (15)
C340.0697 (16)0.0736 (17)0.117 (3)−0.0124 (14)0.0048 (17)−0.0369 (17)
C370.086 (2)0.0790 (19)0.101 (2)0.0032 (16)−0.0105 (18)0.0071 (17)
S1—C81.737 (2)C33—C341.385 (4)
S1—C21.7550 (19)C33—C381.397 (4)
P11—N101.5782 (16)C33—C321.506 (4)
P11—C241.803 (2)C27—C281.368 (4)
P11—C121.804 (2)C27—C261.371 (4)
P11—C181.8057 (19)C27—H270.9300
C2—N101.351 (2)C23—C221.382 (3)
C2—C31.385 (2)C23—H230.9300
C24—C291.383 (3)C25—C261.395 (3)
C24—C251.388 (3)C25—H250.9300
C3—C301.424 (3)C26—H260.9300
C3—C91.435 (3)C17—C161.389 (3)
C18—C191.383 (3)C17—H170.9300
C18—C231.394 (3)C16—C151.369 (4)
C9—C81.345 (3)C16—H160.9300
C9—C41.501 (2)C36—C351.341 (5)
C4—C51.528 (3)C36—C371.347 (5)
C4—H4A0.9700C36—H360.9300
C4—H4B0.9700C15—C141.369 (4)
C12—C171.384 (3)C15—H150.9300
C12—C131.389 (3)C14—H140.9300
C8—C71.496 (3)C28—H280.9300
C30—N311.143 (3)C22—C211.367 (4)
C19—C201.396 (3)C22—H220.9300
C19—H190.9300C20—C211.370 (4)
N6—C71.458 (3)C20—H200.9300
N6—C321.462 (3)C21—H210.9300
N6—C51.474 (3)C35—C341.373 (5)
C7—H7A0.9700C35—H350.9300
C7—H7B0.9700C32—H32A0.9700
C29—C281.388 (3)C32—H32B0.9700
C29—H290.9300C38—C371.376 (4)
C13—C141.386 (3)C38—H380.9300
C13—H130.9300C34—H340.9300
C5—H5A0.9700C37—H370.9300
C5—H5B0.9700
C8—S1—C292.17 (9)C34—C33—C38116.4 (3)
N10—P11—C24104.09 (8)C34—C33—C32122.4 (3)
N10—P11—C12115.09 (8)C38—C33—C32121.1 (3)
C24—P11—C12109.28 (8)C28—C27—C26120.0 (2)
N10—P11—C18113.76 (9)C28—C27—H27120.0
C24—P11—C18107.42 (9)C26—C27—H27120.0
C12—P11—C18106.90 (9)C22—C23—C18119.8 (2)
N10—C2—C3124.56 (16)C22—C23—H23120.1
N10—C2—S1126.48 (13)C18—C23—H23120.1
C3—C2—S1108.96 (13)C24—C25—C26119.4 (2)
C2—N10—P11130.67 (13)C24—C25—H25120.3
C29—C24—C25119.31 (19)C26—C25—H25120.3
C29—C24—P11119.39 (15)C27—C26—C25120.7 (2)
C25—C24—P11121.24 (16)C27—C26—H26119.7
C2—C3—C30120.69 (17)C25—C26—H26119.7
C2—C3—C9114.23 (16)C12—C17—C16120.2 (2)
C30—C3—C9125.07 (16)C12—C17—H17119.9
C19—C18—C23119.18 (18)C16—C17—H17119.9
C19—C18—P11118.30 (15)C15—C16—C17120.0 (3)
C23—C18—P11122.44 (16)C15—C16—H16120.0
C8—C9—C3112.36 (16)C17—C16—H16120.0
C8—C9—C4121.09 (18)C35—C36—C37119.1 (3)
C3—C9—C4126.47 (17)C35—C36—H36120.5
C9—C4—C5111.13 (18)C37—C36—H36120.5
C9—C4—H4A109.4C16—C15—C14120.4 (2)
C5—C4—H4A109.4C16—C15—H15119.8
C9—C4—H4B109.4C14—C15—H15119.8
C5—C4—H4B109.4C15—C14—C13120.2 (2)
H4A—C4—H4B108.0C15—C14—H14119.9
C17—C12—C13119.13 (19)C13—C14—H14119.9
C17—C12—P11121.62 (15)C27—C28—C29120.1 (3)
C13—C12—P11118.64 (15)C27—C28—H28120.0
C9—C8—C7124.33 (18)C29—C28—H28120.0
C9—C8—S1112.26 (15)C21—C22—C23120.4 (2)
C7—C8—S1123.18 (16)C21—C22—H22119.8
N31—C30—C3179.3 (2)C23—C22—H22119.8
C18—C19—C20120.3 (2)C21—C20—C19119.4 (2)
C18—C19—H19119.8C21—C20—H20120.3
C20—C19—H19119.8C19—C20—H20120.3
C7—N6—C32110.9 (2)C22—C21—C20120.8 (2)
C7—N6—C5109.80 (19)C22—C21—H21119.6
C32—N6—C5112.64 (19)C20—C21—H21119.6
N6—C7—C8107.58 (18)C36—C35—C34121.7 (3)
N6—C7—H7A110.2C36—C35—H35119.1
C8—C7—H7A110.2C34—C35—H35119.1
N6—C7—H7B110.2N6—C32—C33111.7 (2)
C8—C7—H7B110.2N6—C32—H32A109.3
H7A—C7—H7B108.5C33—C32—H32A109.3
C24—C29—C28120.5 (2)N6—C32—H32B109.3
C24—C29—H29119.8C33—C32—H32B109.3
C28—C29—H29119.8H32A—C32—H32B107.9
C14—C13—C12120.0 (2)C37—C38—C33120.7 (3)
C14—C13—H13120.0C37—C38—H38119.7
C12—C13—H13120.0C33—C38—H38119.7
N6—C5—C4110.37 (17)C35—C34—C33120.8 (3)
N6—C5—H5A109.6C35—C34—H34119.6
C4—C5—H5A109.6C33—C34—H34119.6
N6—C5—H5B109.6C36—C37—C38121.2 (3)
C4—C5—H5B109.6C36—C37—H37119.4
H5A—C5—H5B108.1C38—C37—H37119.4
C8—S1—C2—N10179.48 (17)P11—C18—C19—C20−177.18 (18)
C8—S1—C2—C3−0.05 (14)C32—N6—C7—C8−177.4 (2)
C3—C2—N10—P11−174.79 (14)C5—N6—C7—C857.4 (2)
S1—C2—N10—P115.7 (3)C9—C8—C7—N6−22.4 (3)
C24—P11—N10—C2173.39 (17)S1—C8—C7—N6151.68 (16)
C12—P11—N10—C253.8 (2)C25—C24—C29—C28−0.6 (3)
C18—P11—N10—C2−70.01 (19)P11—C24—C29—C28176.58 (19)
N10—P11—C24—C290.25 (18)C17—C12—C13—C140.1 (3)
C12—P11—C24—C29123.69 (16)P11—C12—C13—C14−171.05 (19)
C18—P11—C24—C29−120.68 (16)C7—N6—C5—C4−69.2 (2)
N10—P11—C24—C25177.42 (17)C32—N6—C5—C4166.6 (2)
C12—P11—C24—C25−59.14 (19)C9—C4—C5—N639.9 (3)
C18—P11—C24—C2556.49 (19)C19—C18—C23—C22−0.5 (4)
N10—C2—C3—C300.5 (3)P11—C18—C23—C22176.3 (2)
S1—C2—C3—C30−179.95 (14)C29—C24—C25—C261.3 (3)
N10—C2—C3—C9179.89 (16)P11—C24—C25—C26−175.92 (18)
S1—C2—C3—C9−0.57 (19)C28—C27—C26—C25−0.9 (4)
N10—P11—C18—C19−11.62 (19)C24—C25—C26—C27−0.5 (4)
C24—P11—C18—C19103.01 (17)C13—C12—C17—C16−0.2 (4)
C12—P11—C18—C19−139.79 (16)P11—C12—C17—C16170.7 (2)
N10—P11—C18—C23171.61 (18)C12—C17—C16—C15−0.1 (4)
C24—P11—C18—C23−73.8 (2)C17—C16—C15—C140.4 (5)
C12—P11—C18—C2343.4 (2)C16—C15—C14—C13−0.5 (5)
C2—C3—C9—C81.1 (2)C12—C13—C14—C150.2 (4)
C30—C3—C9—C8−179.54 (17)C26—C27—C28—C291.5 (4)
C2—C3—C9—C4177.94 (17)C24—C29—C28—C27−0.8 (4)
C30—C3—C9—C4−2.7 (3)C18—C23—C22—C210.8 (4)
C8—C9—C4—C5−5.3 (3)C18—C19—C20—C210.8 (4)
C3—C9—C4—C5178.09 (18)C23—C22—C21—C20−0.2 (5)
N10—P11—C12—C17−94.91 (19)C19—C20—C21—C22−0.6 (4)
C24—P11—C12—C17148.44 (18)C37—C36—C35—C340.3 (5)
C18—P11—C12—C1732.5 (2)C7—N6—C32—C3362.6 (3)
N10—P11—C12—C1376.04 (18)C5—N6—C32—C33−173.9 (2)
C24—P11—C12—C13−40.61 (18)C34—C33—C32—N6−127.8 (3)
C18—P11—C12—C13−156.57 (16)C38—C33—C32—N651.2 (3)
C3—C9—C8—C7173.52 (19)C34—C33—C38—C371.1 (4)
C4—C9—C8—C7−3.5 (3)C32—C33—C38—C37−178.0 (3)
C3—C9—C8—S1−1.1 (2)C36—C35—C34—C33−0.5 (5)
C4—C9—C8—S1−178.14 (14)C38—C33—C34—C35−0.2 (4)
C2—S1—C8—C90.68 (15)C32—C33—C34—C35179.0 (3)
C2—S1—C8—C7−174.02 (18)C35—C36—C37—C380.7 (5)
C23—C18—C19—C20−0.3 (3)C33—C38—C37—C36−1.4 (5)
  5 in total

1.  A short history of SHELX.

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

2.  Organic azides: an exploding diversity of a unique class of compounds.

Authors:  Stefan Bräse; Carmen Gil; Kerstin Knepper; Viktor Zimmermann
Journal:  Angew Chem Int Ed Engl       Date:  2005-08-19       Impact factor: 15.336

3.  Efficient regioselective synthesis of indole N-carboximidamides and N-carboximidoates by a sequential Aza-Wittig/Ag(I)-catalyzed cyclization.

Authors:  Nian-Yu Huang; Ming-Guo Liu; Ming-Wu Ding
Journal:  J Org Chem       Date:  2009-09-04       Impact factor: 4.354

4.  Efficient synthesis and biological evaluation of 1,2,9-trisubstituted 1,9-dihydro-6H-purin-6-ones.

Authors:  Nian-Yu Huang; Yong-Ju Liang; Ming-Wu Ding; Li-Wu Fu; Hong-Wu He
Journal:  Bioorg Med Chem Lett       Date:  2008-12-07       Impact factor: 2.823

5.  Tris(4-methyl-phen-yl)phosphine selenide.

Authors:  Alfred Muller
Journal:  Acta Crystallogr Sect E Struct Rep Online       Date:  2010-12-08
  5 in total

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