Building Blocks for Molecular Polygons Based on Platinum Vertices and Polyynediyl Edges

Building Blocks for Molecular Polygons Based on Platinum Vertices and Polyynediyl Edges
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基于铂顶点和聚炔二基边的分子多边形构建块

DOI:
10.1021/acs.organomet.2c00573
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发表时间:
2023
期刊:
影响因子:
2.8
通讯作者:
Gladysz, John A.
Gladysz, John A.
中科院分区:
化学2区
文献类型:
--
作者:
Collins, Brenna K.;Weisbach, Nancy;Hampel, Frank;Bhuvanesh, Nattamai;Gladysz, John A.

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Cl_2P(CH_2)_3PCl_2与p-MgBrC_6H_4X(X =a/OMe,B/OtBu,c/tBu,d/SiMe_3)反应,得到双膦(p-XC_6H_4)_2P(CH_2)_3P(p-C_6H_4X)_2(1a-d; 47-66%)。将1a,d加入到(COD)PtCl 2中得到(CH 2(CH 2 P(p-C6 H4 X)2)2)PtCl 2(2a,d; 62-88%),其与丁二炔(2当量; HNEt 2/催化剂CuI)反应得到(CH 2(CH 2 P(p-C6 H4 X)2)2)Pt((C = C)2 H)2(3a,d; 34-76%)。另外,3a-d可以从trans-(p-tol 3 P)2 Pt((C = C)2 H)2和1a-d(30-87%)获得。(p-tol 3 P)2 PtCl 2与H(C = C)2SiR 3的反应(2当量,HNEt 2/cat. CuI; R = Me/Et/iPr)得到反式-(p-tol 3 P)2 Pt((C = C)2SiR 3)2(77-95%),随后加入1a、B,得到相应的加合物(CH2(CH2P(p-C6H4X)2)2)Pt((C = C)2SiR3)2(R/X = Me/OMe,5a;iPr/OMe,6a;iPr/OtBu,6b;iPr/SiMe 3,6d; 52-95%)和(对于5a)具有transPt((C≡C)2SiMe 3)2单元的发光双铂副产物。5a和6 b在F-存在下水解为3a,B(92-93%)。2a和3a(HNEt 2/cat. CuI)反应得到Pt 4C 16多角形([(CH 2(CH 2 P(p-C6 H4 OMe)2)2)Pt(C = C)2] 4,为H2 NEt 2 + Cl-加合物(66%)。3a-d,5a和6a,B,d的~(13)C {1H} NMR谱表征了复杂的AMXX′(CPtPP′)自旋体系,模拟结果允许提取J值。测定并分析了2a、3a、B、d、5a和6a的晶体结构。
Reactions of Cl2P(CH2)3PCl2andp-MgBrC6H4X (X =a/OMe,b/OtBu,c/tBu,d/SiMe3) give the diphosphines (p-XC6H4)2P(CH2)3P(p-C6H4X)2(1a–d; 47–66%). Additions of1a,dto (COD)PtCl2yield (CH2(CH2P(p-C6H4X)2)2)PtCl2(2a,d; 62–88%), which upon reaction with butadiyne (2 equiv; HNEt2/cat. CuI) give (CH2(CH2P(p-C6H4X)2)2)Pt((C≡C)2H)2(3a,d; 34–76%). Alternatively,3a–dcan be accessed fromtrans-(p-tol3P)2Pt((C≡C)2H)2and1a–d(30–87%). Reactions of (p-tol3P)2PtCl2and H(C≡C)2SiR3(2 equiv, HNEt2/cat. CuI; R = Me/Et/iPr) givetrans-(p-tol3P)2Pt((C≡C)2SiR3)2(77–95%), and subsequent additions of1a,b,dyield the corresponding adducts (CH2(CH2P(p-C6H4X)2)2)Pt((C≡C)2SiR3)2(R/X = Me/OMe,5a;iPr/OMe,6a;iPr/OtBu,6b;iPr/SiMe3,6d; 52–95%) and (for5a) a luminescent diplatinum byproduct withtransPt((C≡C)2SiMe3)2units.5aand6bhydrolyze in the presence of F–to3a,b(92–93%). Reaction of2aand3a(HNEt2/cat. CuI) affords the Pt4C16polygon ([(CH2(CH2P(p-C6H4OMe)2)2)Pt(C≡C)2]4as an H2NEt2+Cl–adduct (66%). The13C{1H} NMR spectra of3a–d,5a, and6a,b,dfeature complex AMXX′ (CPtPP′) spin systems, and simulations allowJvalues to be extracted. The crystal structures of2a,3a,b,d,5a, and6aare determined and analyzed.
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