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The Properties:Experimental data reported http://www.chemspider.com/Chemical-Structure.109776.html?rid=f2f4128c-8e56-4ae7-8280-7d1708e49f1a for stannane (SnH4)appear to be data for metallic tin (Sn). (Stannane is a gas at STP, but, for example, the data report a melting point of 232 C, which I happen to recognize as the melting point of tin.)
This looks like a data mapping error - we will introduce new controls that will allow us to fix this data shortly. Thank you for pointing this out.
Also from the RSC