Three new copper-lead selenite bromides were synthesized by chemical vapor transport reactions. Pb₅Cu⁺₄(SeO₃)₄Br₆ is monoclinic, space group C2/m, a = 17.7248(14), b = 5.5484(5), c = 12.7010(10) Å, β = 103.398(2)º, V = 1215.08(17) ų, R₁ = 0.024; Pb₈Cu²⁺(SeO₃)₄Br₁₀ is orthorhombic, space group I222, a = 9.5893(5), b = 12.4484(9), c = 12.7927(6) Å, V = 1527.08(15) ų, R₁ = 0.027; Pb₅Cu²⁺(SeO₃)₄(Br,Cl)₄ is monoclinic, C2/c, a = 24.590(6) Å, b = 5.5786(14) Å, c = 14.248(4) Å, β = 102.883(7)º, V = 1905.3(9) ų, R₁ = 0.026. The crystal structure of Pb₅Cu⁺₄(SeO₃)₄Br₆ consists of two distinct parts: corner- and edge-sharing Cu⁺Br₄ tetrahedra form infinite [Cu⁺₄Br₆]^2- layers which alternate with [Pb₅(SeO₃)₄]²⁺ layers. Pb₈Cu²⁺(SeO₃)₄Br₁₀ contains positively charged unique [Pb₈Cu²⁺(SeO₃)₄]¹⁰⁺ rod-like chains with Cu²⁺ cations in the core. These chains are held together by Br^- anions. Pb₅Cu⁺₄(SeO₃)₄Br₆ and Pb₈Cu²⁺(SeO₃)₄Br₁₀ belong to new structure types. Pb₅Cu²⁺(SeO₃)₄(Br,Cl)₄ is a synthetic analogue of the mineral sarrabusite, Pb₅Cu(SeO₃)₄Cl₄, previously known from an electron diffraction study. The investigation of this synthetic equivalent of sarrabusite by conventional single-crystal X-ray diffraction provides a distinctly improved insight in this crystal structure. Cu atom has well-defined [2O+(2O+2X)] (X = halogen) distorted octahedral coordination. PbO_n and SeO₃ polyhedra interconnect via common oxygen atoms into [Pb₅(SeO₃)₄]²⁺ layers parallel to (001). Cu²⁺ cations interconnect the layers into the framework with the large cavities filled by halide X anions. In all three new compounds described, a common feature is the formation of the selenophile substructure which is terminated by a ‘lone-pair’ shell that faces bromide complexes thus forming the surface of a halophile substructure.

通过化学气相传输反应合成了三种新的铜铅亚硒酸盐溴化物。 Pb ₅ Cu ⁺ ₄ (SeO ₃ ) ₄ Br ₆是单斜晶系，空间群C 2/ m，a = 17.7248(14)，b = 5.5484(5)，c = 12.7010(10) Å，β = 103.398(2) ，V = 1215.08(17) Å ³，R ₁ = 0.024； Pb ₈ Cu ²⁺ (SeO ₃ ) ₄ Br ₁₀是斜方晶系，空间群I 222，a = 9.5893(5)，b = 12.4484(9)，c = 12.7927(6) Å，V = 1527.08(15) Å ³，R ₁ = 0.027； Pb ₅ Cu ²⁺ (SeO ₃ ) ₄ (Br,Cl) ₄是单斜晶系，C 2/ c , a = 24.590(6) Å, b = 5.5786(14) Å, c = 14.248(4) Å, β = 102.883(7)°，V = 1905.3(9) Å ³，R ₁ = 0.026。 Pb ₅ Cu ⁺ ₄ (SeO ₃ ) ₄ Br ₆的晶体结构由两个不同的部分组成：共享角和边的 Cu ⁺ Br ₄四面体形成无限的 [Cu ⁺ ₄ Br ₆ ] ^2-层，其与 [Pb 交替] ₅ (SeO ₃ ) ₄ ] ²⁺层。 Pb ₈ Cu ²⁺ (SeO ₃ ) ₄ Br ₁₀含有带正电的独特的[Pb ₈ Cu ²⁺ (SeO ₃ ) ₄ ] ¹⁰⁺棒状链，其核心为Cu ^{2+阳离子。这些链由 Br -}阴离子连接在一起。 Pb ₅ Cu ⁺ ₄ (SeO ₃ ) ₄ Br ₆和Pb ₈ Cu ²⁺ (SeO ₃ ) ₄ Br ₁₀属于新结构类型。铅₅ Cu ²⁺ (SeO ₃ ) ₄ (Br,Cl) ₄是矿物 sarrabusite Pb ₅ Cu(SeO ₃ ) ₄ Cl ₄的合成类似物，先前通过电子衍射研究已知。通过传统的单晶 X 射线衍射对这种 sarrabusite 的合成等价物进行研究，显着改善了对该晶体结构的了解。 Cu原子具有明确的[2O+(2O+2 X )]（X =卤素）扭曲八面体配位。 PbO _n和SeO ₃多面体通过共同的氧原子互连成平行于(001)的[Pb ₅ (SeO ₃ ) ₄ ] ²⁺层。 Cu ²⁺阳离子将各层互连到框架中，并具有由卤化物X阴离子填充的大空腔。在所描述的所有三种新化合物中，一个共同特征是形成亲硒子结构，该亲硒子结构由面向溴化物配合物的“孤对”壳终止，从而形成亲盐子结构的表面。