已合成并全面表征了十二种含硫四唑配体的Re（I）三羰基二亚胺（2,2'-联吡啶和1,10-邻菲啰啉）配合物。结构表征表明四唑配体能够通过S原子或N原子与Re（I）中心结合，晶体学研究显示大多数配合物与N原子结合。但是已经发现一种通过S原子连接Re（I）中心的例子。在溶液中，配合物存在着链位置异构体的平衡混合体，这是通过比较它们在室温和373K下的NMR光谱以及2D交换光谱法得出的。在室温下，这些配合物在流体溶液中是荧光发射的，发射波长分别为625或640纳米，来自于三重性的金属-配体荷移激发态，似乎完全依赖于二亚胺配体的性质。与2,2'-联吡啶配体结合的配合物的氧敏感激发态寿命范围在12.5-27.5纳秒之间，而与1.10-邻菲啰啉配体结合的配合物的寿命范围在130.6-155.2纳秒之间。量子产率在0.4至1.5％之间测量。这些配合物与人类肺（A549）、脑（T98g）和乳腺（MDA-MB-231）癌细胞以及正常人皮肤成纤维细胞（HFF-1）一起孵育，显示出低至中等细胞毒性，其中一些化合物的毒性超过了一种标准抗癌药物顺铂。低细胞毒性和显著的细胞摄取和荧光特性为这些配合物作为细胞成像药物提供了潜在用途。此外，这些配合物在光照前后以及无光照条件下被评估在MRSA（甲氧西林耐药金黄色葡萄球菌）、VRE (耐万古霉素的肠球菌）、大肠杆菌（E. coli）和铜绿假单胞菌（P. aeruginosa）细菌株中的圆盘扩散和微量琼脂稀释法中，显示出微不足道的抗菌活性。

Twelve Re(I) tricarbonyl diimine (2,2'-bipyridine and 1,10-phenanthroline) complexes with thiotetrazolato ligands have been synthesised and fully characterised. Structural characterisation revealed the capacity of the tetrazolato ligand to bind to the Re(I) centre through either the S atom or the N atom with crystallography revealing most complexes being bound to the N atom. However, an example where the Re(I) centre is linked via the S atom has been identified. In solution, the complexes exist as an equilibrating mixture of linkage isomers, as suggested by comparison of their NMR spectra at room temperature and 373 K, as well as 2D exchange spectroscopy. The complexes are photoluminescent in fluid solution at room temperature, with emission either at 625 or 640 nm from the metal-to-ligand charge transfer excited states of triplet multiplicity, which seems to be exclusively dependent on the nature of the diimine ligand. The oxygen-sensitive excited state lifetime decay ranges between 12.5 and 27.5 ns for the complexes bound to 2,2'-bipyrdine, or between 130.6 and 155.2 ns for those bound to 1.10-phenanthroline. Quantum yields were measured within 0.4 and 1.5%. The complexes were incubated with human lung (A549), brain (T98g), and breast (MDA-MB-231) cancer cells, as well as with normal human skin fibroblasts (HFF-1), revealing low to moderate cytotoxicity, which for some compounds exceeded that of a standard anti-cancer drug, cisplatin. Low cytotoxicity combined with significant cellular uptake and photoluminescence properties provides potential for their use as cellular imaging agents. Furthermore, the complexes were assessed in disc diffusion and broth microdilution assays against methicillin-resistant Staphylococcus aureus (MRSA), vancomycin-resistant Enterococcus (VRE), Escherichia coli (E. coli), and Pseudomonas aeruginosa (P. aeruginosa) bacterial strains, which revealed negligible antibacterial activity in the dark or after irradiation.