Ozawa Yoshiki, Kim Misa, Toriumi Koshiro
Department of Material Science, University of Hyogo, 3-2-1 Kouto, Kamigori-cho, Hyogo 678-1297, Japan.
Acta Crystallogr C. 2013 Feb;69(Pt 2):146-9. doi: 10.1107/S0108270113000541. Epub 2013 Jan 29.
A new one-dimensional platinum mixed-valence complex with nonhalogen bridging ligands, namely catena-poly[[[bis(ethane-1,2-diamine-κ(2)N,N')platinum(II)]-μ-thiocyanato-κ(2)S:S-[bis(ethane-1,2-diamine-κ(2)N,N')platinum(IV)]-μ-thiocyanato-κ(2)S:S] tetrakis(perchlorate)], {Pt(2)(SCN)(2)(C(2)H(8)N(2))(4)(4)}(n), has been isolated. The Pt(II) and Pt(IV) atoms are located on centres of inversion and are stacked alternately, linked by the S atoms of the thiocyanate ligands, forming an infinite one-dimensional chain. The Pt(IV)-S and Pt(II)···S distances are 2.3933 (10) and 3.4705 (10) Å, respectively, and the Pt(IV)-S···Pt(II) angle is 171.97 (4)°. The introduction of nonhalogen atoms as bridging ligands in this complex extends the chemical modifications possible for controlling the amplitude of the charge-density wave (CDW) state in one-dimensional mixed-valence complexes. The structure of a discrete Pt(IV) thiocyanate compound, bis(ethane-1,2-diamine-κ(2)N,N')bis(thiocyanato-κS)platinum(IV) bis(perchlorate) 1.5-hydrate, Pt(SCN)(2)(C(4)H(8)N(2))(2)(2)·1.5H(2)O, has monoclinic (C2) symmetry. Two S-bound thiocyanate ligands are located in trans positions, with an S-Pt-S angle of 177.56 (3)°.
一种具有非卤素桥联配体的新型一维铂混合价配合物，即链状聚[[[双(乙烷-1,2-二胺-κ(2)N,N')铂(II)]-μ-硫氰酸根-κ(2)S:S-[双(乙烷-1,2-二胺-κ(2)N,N')铂(IV)]-μ-硫氰酸根-κ(2)S:S]四高氯酸盐]，{Pt₂(SCN)₂(C₂H₈N₂)₄₄}ₙ已被分离出来。Pt(II)和Pt(IV)原子位于对称中心，交替堆叠，通过硫氰酸根配体的S原子相连，形成无限的一维链。Pt(IV)-S和Pt(II)···S距离分别为2.3933(10)和3.4705(10)Å，Pt(IV)-S···Pt(II)角度为171.97(4)°。在该配合物中引入非卤素原子作为桥联配体扩展了控制一维混合价配合物中电荷密度波(CDW)状态幅度的可能化学修饰。一种离散的Pt(IV)硫氰酸盐化合物，双(乙烷-1,2-二胺-κ(2)N,N')双(硫氰酸根-κS)铂(IV)双高氯酸盐1.5水合物，Pt(SCN)₂(C₄H₈N₂)₂₂·1.5H₂O，具有单斜(C2)对称性。两个S键合的硫氰酸根配体位于反位，S-Pt-S角度为177.56(3)°。
