Nitrile functionalized organogermane chalcogenide clusters with hetero-(nor-)adamantane cores

K2Ge3As3: Fiberlike Crystals of a Narrow-Band-Gap Zintl Phase with a One-Dimensional Substructure ∞1{(Ge3As3)2–}

“…This building unit comprises two identical heteroatomic 9-atom cages, in which one As and two Ge atoms of a six-membered Ge 4 As 2 = As­(Ge 2 ) 2 As ring are bonded to a capping As 2 Ge unit. This cage represents a noradamantane-like architecture, which was described previously also for organogermanium chalcogenide clusters. − This underlines the applicability of the pseudo -element or isolobal concept even in such complicated cases, with Ge replacing C, As or Ge – replacing CH, and As – replacing CH 2 of the parent noradamantane molecule (noradamantane = tricyclo­[3.3.1.0 3,7 ]­nonane, C 9 H 14 ). It is worth noting that the recently reported structure of K 2 TlBi is based on another cage type that is known from organotetrel chalcogenide clusters, namely, the “double-decker”-like architecture, − which represents an isomeric form of the prominent adamantane unit (adamantane = tricyclo­[3.3.1.1 3,7 ]­decane, C 10 H 16 ) in such clusters.…”

Adamantane-type clusters: compounds with a ubiquitous architecture but a wide variety of compositions and unexpected materials properties

“…While at first reactions were carried out using gaseous H2E (E = S, Se) and a group 14 halide RQX3, [303][304][305] most hybrid materials can be obtained through route D, using a solid or liquid chalcogenide source A2E (A = alkaline metal, SiMe3; E = S, Se) to prepare 565-612 (Figure 13). [306][307][308][309][310][311][312][313][314][315][316][317][318][319][320][321][322] As some of them are sensitive to water, the (SiMe3)2E precursors are often advantageous for their solubility in organic solvents. The clusters' structure is heavily influenced by their organic component.…”

“…MeOCCH2CMe2GeCl3, Na2S / Me2CO, H2O, 4 h D [323] [{NC(CH2)2Ge}4S6] ( 581) NC(CH2)2GeCl3, Na2S / Me2CO, H2O, 5 h D [314] [(PhGe)4S6] (582)…”

Amino Acid Functionalized Organotin Trichlorides and Their Tin Sulfide Clusters

“…[4,5] Such clusters have been isolated in many different inorganic core architectures, with the most dominant ones possessing a defect-heterocubane-type [(RSn) 3 S 4 Cl], a "doppeldecker"-type [(RSn) 4 S 6 ], and the isomeric adamantane-type structure [(RSn) 4 S 6 ], respectively. [5][6][7][8][9][10][11][12][13] Metal chalcogenide clusters furthermore play an important role for bio-relevant developments. [14] Here, tin sulfide clusters can be potentially useful as cytotoxic agents, as they decompose under slightly acidic conditions to release cytotoxic H 2 S. [15] This may allow for a targeted delivery of H 2 S to undesirable cells, the environment of which can be more acidic than that of healthy cells.…”

“…Chalcogenidometallate clusters provide a perspective into a wide field of applications, Some organotetrel chalcogenide clusters that combine tetrel atoms Si, Ge, or Sn and chalcogen atoms S, Se, or Te with different organic substituents R, for instance, show extreme nonlinear optical properties , . Such clusters have been isolated in many different inorganic core architectures, with the most dominant ones possessing a defect‐heterocubane‐type [(RSn) 3 S 4 Cl], a “doppeldecker”‐type [(RSn) 4 S 6 ], and the isomeric adamantane‐type structure [(RSn) 4 S 6 ], respectively …”