Platinum complexes with iminodiacetate and (methylimino)diacetate, including genuine meridional complexes
Platinum complexes with iminodiacetate and (methylimino)diacetate, including genuine meridional complexes
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铂与亚氨基二乙酸酯和(甲基亚氨基)二乙酸酯的络合物，包括真正的子午络合物
DOI：
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发表时间：
1985
期刊：
影响因子：
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通讯作者：
J. R. Hall
中科院分区：
文献类型：
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作者：
T. Appleton;R. D. Berry;J. R. Hall
文献报道了PtCl 42-与LH 2（亚氨基二乙酸，idaH 2或（甲基亚氨基）二乙酸，midaH 2）反应，生成铂（II）与配体双醛的配合物K[Pt（ida）Cl]·2 HCl和H[Pt（mida）Cl]·2 HCl。这些化合物是铂（IV）配合物，Pt（L）Cl 3 -，配体的面，它可以直接从K2 PtCl 6和LH 2制备。室温下，K2 PtCl 4与LH 2反应生成K[Pt（LH）Cl 2]，其中配体为双齿，通过N原子和一个O原子配位。通过在Pt（LH）Cl 2 -溶液中小心地加入碱，可以得到真正的mer-Pt（L）Cl -（对于L = mida更容易）。加热含有过量LH 2的K 2 PtCl 4溶液，得到微溶的Pt（LH）2（之前报道过L = ida），与碱一起，得到可溶的Pt（L）2 2-。这些化合物含有双齿配体。Pt（ida）2 2-在溶液中发生缓慢的顺反异构化。在高pH下，配位氮的转化变得迅速。在碱性D2 O溶液中，配位臂的亚甲基被氘代.文献中描述为H 2n[Pt（mida）2] n的化合物是铂（IV）化合物Pt（mida）2。该络合物和Pt（ida）2可以通过相应的铂（II）络合物Pt（LH）2与过氧化氢反应来制备。
Reactions of PtCl 4 2- with LH 2 (iminodiacetic acid, idaH 2, or (methylimino)diacetic acid, midaH 2) have been reported in the literature to yield platinum(II) complexes with the ligand meridional, K[Pt(ida)Cl]·2HCl and H[Pt(mida)Cl]·2HCl. These compounds are platinum(IV) complexes, Pt(L)Cl 3 -, with the ligand facial, which may be prepared directly from K 2PtCl 6 and LH 2. Reaction of K 2PtCl 4 with LH 2 at ambient temperature gives K[Pt(LH)Cl 2], in which the ligand is bidentate, coordinating through the N atom and one O atom. Genuine mer-Pt(L)Cl - may be obtained (more readily for L = mida) by careful addition of alkali to a solution of Pt(LH)Cl 2 -. Heating a solution of K 2PtCl 4 with excess LH 2 gives sparingly soluble Pt(LH) 2 (previously reported for L = ida), which, with alkali, gives soluble Pt(L) 2 2-. These compounds contain bidentate ligand. For Pt(ida) 2 2-, slow cis-trans isomerizalion occurs in solution. At high pH, inversion about coordinated nitrogen becomes rapid. In alkaline D 2O solutions, the methylene group of the coordinated arm is specifically deuterated. The compound described in the literature as H 2n[Pt(mida) 2] n is the platinum(IV) compound Pt(mida) 2. This complex, and Pt(ida) 2, may be prepared by reaction of the corresponding platinum(II) complex, Pt(LH) 2, with hydrogen peroxide.